Tucson Classical Music Performances 2025

Here’s a comprehensive list of live classical music performances in Tucson for the year 2025 where the program of composers and works has been published. I will keep this Excel document regularly updated. Please post a comment if anything should be added or changed.

I’ve included a column called “Dave’s Faves” which notes the works I am already familiar with and that I highly recommend. This is subjective, of course, but I hope this will help some of you in deciding which concerts to attend.

Happy Listening!

Link below is an Excel file (.xlsx).
Last Updated: March 18, 2024

Tucson Classical Music Performances 2025

Click here for 2024 concerts.


Music for Listeners

Music for Listeners is a series of short courses for high school students and adults presenting the works of composers from a listening enjoyment rather than a music theory perspective. Each course presents the life and music of a composer chronologically and is taught by lifelong classical music enthusiast David Oesper.


Classical Music Exploration Club

If you live in the Tucson metro area and would like to get together each month to listen to and discuss recordings of favorite classical music pieces we love and would like to introduce to others, I hope you will consider joining:

Tucson Exploring Classical Music


Sources
Tucson Symphony Orchestra
Arizona Friends of Chamber Music
University of Arizona Fred Fox School of Music
Southern Arizona Symphony Orchestra
Civic Orchestra of Tucson
Tucson Repertory Orchestra
Saint Andrew’s Bach Society
Arizona Early Music
True Concord, Voices & Orchestra
Arizona Opera
Helios Ensemble
Tucson Masterworks Chorale

Land of the Long Twilights

The first (and only!) sunset1 this year at Amundsen–Scott South Pole Station in Antarctica occurs on March 22 at 0615 UTC (using “astronomer’s time” as time zone has no meaning so close to the South Pole).

The year’s first and only end of civil twilight (when the geometric center of the Sun lies 6° below the horizon) occurs on April 4 at 1153 UTC. That’s 13d05h38m after sunset.

The year’s first and only end of nautical twilight (when the geometric center of the Sun lies 12° below the horizon) occurs on April 21 at 0409 UTC. That’s 16d16h16m after the end of civil twilight.

The year’s first and only end of astronomical twilight (when the geometric center of the Sun lies 18° below the horizon) occurs on May 11 at 0521 UTC. That’s 20d01h12m after the end of nautical twilight, and 49d23h06m after sunset. That’s one heck of a long twilight!

Night lasts from May 11 at 0521 UTC until astronomical twilight begins on July 31 at 1916 UTC. A duration of 81d13h55m.

Nautical twilight begins on August 21 at 0024 UTC. That’s 20d05h08m after the beginning of astronomical twilight.

Civil twilight begins on September 6 at 2121 UTC. That’s 16d20h57m after the beginning of nautical twilight.

The first and only sunrise of the year occurs on September 20 at 0945 UTC. “Morning” twilight lasts a total of 50d14h29m.

The Sun remains above the horizon continuously until sunset on March 22, 2025 at 1100 UTC. Daylight “hours” last 183d01h15m.

Strange place!

1Sunrise and sunset. For computational purposes, sunrise or sunset is defined to occur when the geometric zenith distance of the center of the Sun is 90.8333 degrees. That is, the center of the Sun is geometrically 50 arcminutes below a horizontal plane. For an observer at sea level with a level, unobstructed horizon, under average atmospheric conditions, the upper limb of the Sun will then appear to be tangent to the horizon. The 50-arcminute geometric depression of the Sun’s center used for the computations is obtained by adding the average apparent radius of the Sun (16 arcminutes) to the average amount of atmospheric refraction at the horizon (34 arcminutes).
[Reference: https://aa.usno.navy.mil/faq/RST_defs, but see here:
https://digitalcommons.mtu.edu/etdr/697/]

Note: SkySafari 6 Pro, Version 6.8.2 (6820) for MacOS was used to determine these dates and times. The location coordinates used for Amundsen–Scott South Pole Station were 89° 58′ 59.9″ S, 139° 16′ 01.2″ E, 2835 m.

Fun Fact: Did you know that there is a seismic station near the south pole, and that it has been operating since 1957?

Classical Music Timeline: 1930s

This is one of a series of postings of important classical music dates, from the 17th century to the present. Included are the date and location of the birth and death of composers, and the premiere date and location of the first public performance of works. When the premiere date and location is unknown, the date or year of completion of the work is given. Though reasonably comprehensive, this is a subjective list, so the choice of composers and works is mine. If you find any errors, or if you can offer a premiere date and location for a work where only the completion date or year is listed, please post a comment here.

1930
August 7 – Veljo Tormis (1930-2017) was born in Kuusalu, Estonia

November 28 – Symphony No. 2 in D♭ major, op. 30, “Romantic” by Howard Hanson (1896-1981) was first performed in Boston, Massachusetts

December 17 – Peter Warlock (1894-1930) died in London, England

1931
Ottorino Respighi (1879-1936) completed Ancient Airs and Dances, Suite III, P172

Percy Grainger (1882-1961) completed the orchestral version of Blithe Bells (Ramble on Bach’s “Sheep May Safely Graze”)

September 8A Choral Fantasia, op. 51 by Gustav Holst (1874-1934) was first performed in Gloucester, England

October 3 – Carl Nielsen (1865-1931) died in Copenhagen, Denmark

November 22Grand Canyon Suite by Ferde Grofé (1892-1972) was first performed in Chicago, Illinois

December 2 – Vincent d’Indy (1851-1931) died in Paris, France

1932
February 8 – John Williams (1932-) was born in New York, New York

March 17La donna serpente, opera by Alfredo Casella (1883-1947) was first performed in Rome, Italy

April 2 – Symphony No. 9 by Anton Bruckner (1824-1896) was first performed in Munich, Germany

April 22 – Isao Tomita (1932-2016) was born in Tokyo, Japan

May – Piano Quartet in A minor, op. 67 by Joaquín Turina (1882-1949) was first performed (location unknown)

September 5 – Concerto for Two Pianos and Orchestra in D minor, FP 61 by Francis Poulenc (1899-1963) was first performed in Venice, Italy

1933
Fritz Kreisler (1875-1962) completed Cavatina

Igor Stravinsky (1882-1971) completed Pastorale for Violin and Piano

Aita Donostia (1886-1956) completed Urruti-jaia [Festive Song], for chamber orchestra

January 23 – Piano Concerto No. 2 in G major, Sz. 95, BB 101 by Béla Bartók (1881-1945) was first performed in Frankfurt, Germany

April 9 – Sigfrid Karg-Elert (1877-1933) died in Leipzig, Germany

August 30 – Overture to The School for Scandal, op. 5 by Samuel Barber (1910-1981) was first performed in Philadelphia, Pennsylvania

October 10 – Gloria Coates (1933-2023) was born in Wausau, Wisconsin

October 15 – Concerto for Piano, Trumpet, and String Orchestra (Piano Concerto No. 1), op. 35 by Dmitri Shostakovich (1906-1975) was first performed in Saint Petersburg, Russia

1934
February 23 – Edward Elgar (1857-1934) died in Worcester, Worcestershire, England

MarchBrook Green Suite, for string orchestra, H. 190 by Gustav Holst (1874-1934) was first performed in London, England

April 3The Haunted Ballroom, ballet by Geoffrey Toye (1889-1942) was first performed in London, England

May 25 – Gustav Holst (1874-1934) died in London, England

June 10 – Frederick Delius (1862-1934) died in Grez-sur-Loing, France

September 27 – Fantasia on “Greensleeves” by Ralph Vaughan Williams (1872-1958) and arranged for string orchestra and harp by Ralph Greaves (1889-1966) was first performed in London, England

November 7 – Rhapsody on a Theme of Paganini, in A minor, op. 43 by Sergei Rachmaninoff (1873-1943) was first performed in Baltimore, Maryland

December 21Lieutenant Kijé, suite, op. 60 by Sergei Prokofiev (1891-1953) was first performed in Paris, France

December 31Egyptian Nights, symphonic suite, op. 61 by Sergei Prokofiev (1891-1953) was first performed in a radio broadcast from Moscow, Russia

1935
William Grant Still (1895-1978) completed Summerland

January 28 – Mikhail Ippolitov-Ivanov (1859-1935) died in Moscow, Russia

March 10 – Auvo Sarmanto (1935-) was born in Helsinki, Finland

March 24Music for a Scene from Shelley, tone poem, op. 7 by Samuel Barber (1910-1981) was first performed in New York, New York

April 10 – Symphony No. 4 in F minor by Ralph Vaughan Williams (1872-1958) was first performed in London, England

May 17 – Paul Dukas (1865-1935) died in Paris, France

May 29 – Josef Suk (1874-1935) died in Benešov, Czech Republic

July 17 – Peter Schickele (1935-2024) was born in Ames, Iowa

November 6 – Symphony No. 1 in B♭ minor by William Walton (1902-1983) was first performed in London, England

December 1 – Violin Concerto No. 2 in G minor, op. 63 by Sergei Prokofiev (1891-1953) was first performed in Madrid, Spain

December 4 – Johan Halvorsen (1864-1935) died in Oslo, Norway

1936
January 29Summer’s Last Will and Testament, cantata by Constant Lambert (1905-1951) was first performed in London, England

March 21 – Alexander Glazunov (1865-1936) died in Neuilly-sur-Seine, France

April 11Music for Children, for piano, op. 65 by Sergei Prokofiev (1891-1953) was first performed in Moscow, Russia

April 18 – Ottorino Respighi (1879-1936) died in Rome, Italy

May 2Peter and the Wolf, a symphonic fairy tale for children, op. 67 by Sergei Prokofiev (1891-1953) was first performed in Moscow, Russia

May 10The Plow That Broke the Plains, with documentary film score by Virgil Thomson (1896-1989), received its public premiere in Washington, D.C.

July 22 – Krasimir Kyurkchiyski (1936-2011) was born in Troyan, Bulgaria

October 2Dona Nobis Pacem, cantata for soprano, baritone, chorus, and orchestra by Ralph Vaughan Williams (1872-1958) was first performed in Huddersfield, West Yorkshire, England

October 28 – Carl Davis (1936-2023) was born in Brooklyn, New York

November 11 – Edward German (1862-1936) died in London, England

1937
January 19Hollywood Suite by Ferde Grofé (1892-1972) was first performed in New York, New York

January 31 – Philip Glass (1937-) was born in Baltimore, Maryland

March 12 – Charles-Marie Widor (1844-1937) died in Paris, France

March 29 – Karol Szymanowski (1882-1937) died in Lausanne, Switzerland

May 7 – “Walking the Dog (Promenade)” by George Gershwin (1898-1937) premiered in the film Shall We Dance. This may be the last instrumental composition by Gershwin.

May 8The Prince and the Pauper, with film score by Erich Wolfgang Korngold (1897-1957), was released

July 11 – George Gershwin (1898-1937) died in Los Angeles, California

July 12 – Piano Concerto in D♭ major, op. 38 by Aram Khachaturian (1903-1978) was first performed in Moscow, Russia

September 30 – Valentin Silvestrov (1937-) was born in Kyiv, Ukraine

November 21 – Symphony No. 5 in D minor, op. 47 by Dmitri Shostakovich (1906-1975) was first performed in Saint Petersburg, Russia

December 28 – Maurice Ravel (1875-1937) died in Paris, France

1938
Howard Hanson (1896-1981) completed Suite from Merry Mount

Joaquín Rodrigo (1901-1999) completed Cinco piezas del siglo XVI (Five Pieces of the Sixteenth Century), for piano

February 16 – John Corigliano (1938-) was born in New York, New York

February 22Colas Breugnon, opera, op. 24 by Dmitry Kabalevsky (1904-1987) was first performed in Saint Petersburg, Russia

May 26 – William Bolcom (1938-) was born in Seattle, Washington

October 5Serenade to Music in D major by Ralph Vaughan Williams (1872-1958) was first performed in London, England

October 19 – “September Song”, from Knickerbocker Holiday by Kurt Weill (1900-1950) was first performed in New York, New York

November 5Adagio for Strings in B♭ minor by Samuel Barber (1910-1981) was first performed in New York, New York

December 30 – Romeo and Juliet, ballet, op. 64 by Sergei Prokofiev (1891-1953) was first performed in Brno, Czech Republic

1939
Percy Grainger (1882-1961) completed “The Duke of Marlborough” Fanfare (BFMS No. 36)

March 9Cuatro piezas para piano by Joaquín Rodrigo (1901-1999) was first performed in Paris, France

May 17Alexander Nevsky, cantata, op. 78 by Sergei Prokofiev (1891-1953) was first performed in Moscow, Russia

June 2 – Enrique Fernández Arbós (1863-1939) died in San Sebastián, Spain

June 22 – Heikki Sarmanto (1939-) was born in Helsinki, Finland

November 21 – Symphony No. 6 in B minor, op. 54 by Dmitri Shostakovich (1906-1975) was first performed in Saint Petersburg, Russia

December 21Zdravitsa, cantata for chorus and orchestra, op. 85 by Sergei Prokofiev (1891-1953) was first performed in Moscow, Russia

1920s

1940s→

Prokofiev and Astronomy

I recently completed teaching a six-week course on the Ukraine-born Russian/Soviet composer Sergei Prokofiev (1891-1953), a course I am eager to reprise in the not-too-distant future. His story is by turns both fascinating and tragic, and he wrote a lot of great music—much of it seldom performed. I am amazed that no one has yet produced an English-language documentary on Prokofiev, nor even a biopic.

Since my primary interests are classical music and astronomy, I am naturally curious about significant classical composers who were also interested in astronomy. Prokofiev was one of those composers.

Prokofiev kept fascinating and extensive diaries between 1907 and 1933, a practice which sadly ceased as soon as he began seriously contemplating a return to the Soviet Union and the increasingly repressive regime of Joseph Stalin.

Here are Prokofiev’s astronomy-related entries from those diaries.

The song Prokofiev is referring to here is Two Poems for voice and piano, op. 9, no. 1. The text is a poem by Russian poet Konstantin Balmont (1867-1942). Here is that poem in an English translation:

In this first performance, Anna Grigorievna Zherebtsova-Andreyeva was the singer, and Dulov (first name unknown) was the pianist.

Here is a performance of this work by Andrey Slavny (baritone) and Yuri Serov (piano), recorded at St. Catherine Lutheran Church in St. Petersburg in 1995.

The astronomy book Prokofiev was referring to is The World of the Heavens [Nebesny Mir], An Illustrated Astronomy for the General Reader by E. I. Ignatiev, published in St. Petersburg in 1916. Hardly a “little book” at over 400 pages!

When Prokofiev writes “the green and white diamond of Sirius” he must be referring to the impressive scintillation of Sirius, the brightest star in the night sky, since at the latitude (50° N) of Kharkiv, Ukraine, where he was at the time, Sirius never reaches an altitude higher than 23° above the horizon.

What’s an arshin, you might be wondering? An arshin is an antiquated Russian unit of length equal to 71.12 cm, so “two arshins” would be a little less than 5 ft. in length.

An editorial footnote indicates that “Presumably, Prokofiev’s Fraunhofer was looted or destroyed in the Petrograd flat after his departure in 1918. It would be worth a fortune today.”

Prokofiev continues,

Prokofiev again continues,

An editorial footnote indicates that “The White Nights in St. Petersburg are normally regarded as lasting from 11 June to 2 July. During this period the sun does not descend far enough below the horizon for the sky to become dark.”

Now on holiday on the Kama river, a tributary of the Volga, Prokofiev writes,

Prokofiev would only have been able to see four satellites of Jupiter with his telescope: Io, Europa, Ganymede, and Callisto. The other two “satellites” must have been background stars. If I have figured correctly, Prokofiev would have been observing Jupiter early morning on Friday, August 24, 1917 (New Style date) which would have been Friday, August 11 (Old Style date) in Russia at that time. The two stars he thought were satellites of Jupiter were probably 8th-magnitude stars HD 28990 and HD 28966.

Prokofiev’s reference to the Sun “belonging” to Hercules indicates he knew about the solar apex, the direction the Sun travels relative to the local standard of rest. William Herschel was the first to demonstrate that the solar apex is in the constellation Hercules.

Balmont refers to the aforementioned poet, Konstantin Balmont.

Prokofiev is referring to the 1917 Russian Constituent Assembly election during the Russian Revolution, and that he observed Venus, Jupiter, Sirius, and the Moon at Kislovodsk.

On his way to his first visit to the United States, Prokofiev is spending some time in Japan. At this time he is in Yokohama. At latitude 35° N, he is indeed getting a good view of Scorpius. The date in brackets is the New Style (Gregorian calendar) date, whereas the non-bracket date is the Old Style (Julian calendar) date.

Prokofiev is now sailing from Yokohama to San Francisco, by way of Honolulu.

Prokofiev is now in New York City.

Prokofiev is, of course, referring to the Royal Observatory, Greenwich, London, England.

This takes place in Paris, and B. N. is Boris Nikolayevich Bashkirov, a wealthy amateur poet and friend of Prokofiev whose pseudonym was Boris Verin. “Linette” is Lina Codina, who would become Prokofiev’s wife in two years’ time.

An editorial footnote states, “When staying in Les Rochelets in the summer of 1921 Prokofiev every evening read aloud a chapter of H. G. Wells’s The Outline of History to his mother and Boris Bashkirov.”

Interesting that this insightful essay was penned on “Pi Day”, since the transcendental π = 3.1415926535897932384626433832795… has infinitely many digits that neither terminate nor enter a permanently repeating pattern.

My take after reading this is that there may be two realities. One reality (our reality) consist of entities that exist within time and space. But there is another reality, where there are entities that exist outside of time and space (of which eternity and infinity are proxies).

As for immortality, since I have no consciousness of anything before I was born, why should I expect that I would have any consciousness of anything after I die? To me, that is the most tragic fact of human existence. Within a few minutes (or hours, if extraordinary measures are taken) after death occurs, all of our knowledge and experience—our memories—are irretrievably lost, and all that remains of us is what we have left behind (writing, music, art, etc.), and the memories of those who are still living who knew us. After all the people who knew us personally have died, then all that remains of our existence are artifacts. And, eventually, all of those will be gone, too. This truly emphasizes the importance of this life, of this world, of this time. How we live our lives and treat others today, tomorrow, and the next day are of paramount importance. It is all we have, or will ever have.

Fatou refers to Pierre Joseph Louis Fatou (1878-1929), mathematician and astronomer. I am virtually certain that “Jacobi” is actually the French astronomer Michel Giacobini (1873–1938).

Here are my observing notes about Gamma Leonis:

Algieba.  Very bright, close double.  Primary is orangish-yellow (2.6 K1-IIIbCN-0.5) and secondary is yellow (3.8 G7IIICN-1).  Relative color seems to change as you watch. 

I think it only fitting to end these excerpts from Prokofiev’s diaries with some of his music. In preparing my Prokofiev course, I came across some noteworthy compositions that were not known to me previously. Most unfortunately, some of these works are almost unknown and seldom played because they were written (under duress, without a doubt) as propaganda pieces. Here is, I believe, his most inspired composition written under such circumstances. It is a cantata for chorus and orchestra that Prokofiev wrote in 1939, called Zdravitsa (literally “A Toast!”), op. 85. It was written to commemorate the 60th birthday of Joseph Stalin. The words are hagiolatry in praise of Stalin (Prokofiev did not write them), but the music is truly divine. Here are three excerpts from a recording by the Russian State Symphony Orchestra and the Russian State Symphonic Cappella, conducted by Valeri Polyansky.

The first excerpt is of the orchestra alone:

Now, choir and orchestra:

And, finally, the glorious finale:

I look forward to the time when Russia will be free from tyranny, and when this gorgeous piece by Sergei Prokofiev gets a new libretto. No longer a toast to the despot Stalin, but a toast to peace-loving people throughout the world!

References
Prokofiev, S. (2006). Diaries 1907-1914: Prodigious youth (A. Phillips, Ed.). Faber & Faber.

Prokofiev, S. (2008). Sergey Prokofiev: Diaries 1915-1923: Behind the mask (A. Phillips, Ed.). Faber & Faber.

Prokofiev, Sergei. (2012). Sergey Prokofiev diaries 1924-1933: Prodigal son. Faber & Faber.

Classical Music Timeline: 1920s

This is one of a series of postings of important classical music dates, from the 17th century to the present. Included are the date and location of the birth and death of composers, and the premiere date and location of the first public performance of works. When the premiere date and location is unknown, the date or year of completion of the work is given. Though reasonably comprehensive, this is a subjective list, so the choice of composers and works is mine. If you find any errors, or if you can offer a premiere date and location for a work where only the completion date or year is listed, please post a comment here.

1920
FebruaryLe Tombeau de Couperin (orchestral version) by Maurice Ravel (1875-1937) was first performed in Paris, France

March 25The Hymn of Jesus, op. 37 by Gustav Holst (1874-1934) was first performed in London, England

April 8 – Charles Griffes (1884-1920) died in New York, New York

May 23Short Festival Te Deum, H. 145 by Gustav Holst (1874-1934) was first performed in London, England

June 20Three Tone-Pictures, op. 5 by Charles Griffes (1884-1920) was first performed in Greenwich, Connecticut

October 2 – Max Bruch (1838-1920) died in Berlin, Germany

1921
January 23The Three Miracles of Saint Cecilia, incidental music to the play by Henri Ghéon, by Aita Donostia (1886-1956) was first performed in Paris, France

January 30The Fog is Lifting, for flute and harp, op. 41, no. 2, by Carl Nielsen (1865-1931) was first performed in Copenhagen, Denmark

February 20 – Ruth Gipps (1921-1999) was born in Bexhill-on-Sea, England

March 4 – Kaljo Raid (1921-2005) was born in Tallinn, Estonia

September 27 – Engelbert Humperdinck (1854-1921) died in Neustrelitz, Germany

October 9Taras Bulba by Leoš Janáček (1854-1928) was first performed in Brno, Czech Republic

October 21 – Malcolm Arnold (1921-2006) was born in Northampton, Northamptonshire, England

December 16 – Camille Saint-Saëns (1835-1921) died in Algiers, Algeria

December 16 – Piano Concerto No. 3 in C major, op. 26 by Sergei Prokofiev (1891-1953) was first performed in Chicago, Illinois

1922
January 16 – Symphony No. 3, “Pastoral”, by Ralph Vaughan Williams (1872-1958) was first performed in London, England

January 30 – Percy Grainger (1882-1961) completed Spoon River (AFMS No. 2) [elastic scoring]

February 25Carnival of the Animals by Camille Saint-Saëns (1835-1921) was first performed in Paris, France

March 10 – Hans Sitt (1860-1922) died in Leipzig, Germany

May 20Daisies, in F major, op. 38, no. 3 (piano-only version) by Sergei Rachmaninoff (1873-1943) was first performed in London, England

October 19Pictures at an Exhibition by Modest Mussorgsky (1839-1881) as orchestrated by Maurice Ravel (1875-1937), was first performed in Paris, France

1923
Ottorino Respighi (1879-1936) completed the Ancient Airs and Dances, Suite II

Joseph Canteloube (1879-1957) completed Baïlèro, Chants d’Auvergne, Series 1, No. 2

May 14The Perfect Fool by Gustav Holst (1874-1934) was first performed in London, England

May 28 – György Ligeti (1923-2006) was born in Târnăveni, Romania

September 30Hassan, incidental music, by Frederick Delius (1862-1934) was first performed in London, England

October 18 – Violin Concerto No. 1 in D major, op. 19 by Sergei Prokofiev (1891-1953) was first performed in Paris, France

1924
February 12Rhapsody in Blue by George Gershwin (1898-1937) was first performed in New York, New York

February 27 – Trevor Duncan (1924-2005) was born in London, England

May 8 – The revised version of Piano Concerto No. 2 in G minor, op. 16 by Sergei Prokofiev (1891-1953) was first performed in Paris, France

July 27 – Ferruccio Busoni (1866-1924) died in Berlin, Germany

September 14Ruralia hungarica, Five pieces for orchestra, op. 32b, by Ernst von Dohnányi (1877-1960) was first performed in Pécs, Hungary

September 28 – Rudolf Barshai (1924-2010) was born in Labinsk, Russia

November 4 – Gabriel Fauré (1845-1924) died in Paris, France

December 14The Pines of Rome, tone poem by Ottorino Respighi (1879-1936) was first performed in Rome, Italy

1925
Enrique Fernández Arbós (1863-1939) completed his orchestrations of five of the twelve piano pieces, Iberia, by Isaac Albéniz (1860-1909)

May 29 – Concerto Grosso No. 1 for String Orchestra with Piano Obbligato by Ernest Bloch (1880-1959) was first performed in Cleveland, Ohio

August 31Mississippi Suite by Ferde Grofé (1892-1972) was first performed in New York, New York

November 20 – Clytus Gottwald (1925-2023) was born in Szczawno-Zdrój, Poland

November 29 – The Love for Three Oranges, Suite, op. 33bis by Sergei Prokofiev (1891-1953) was first performed in Paris, France

December 3 – Piano Concerto in F major by George Gershwin (1898-1937) was first performed in New York, New York

1926
Gustav Holst (1874-1934) completed Seven Part-Songs, op. 44

Joaquín Rodrigo (1901-1999) completed Zarabanda lejana (Distant Sarabande)

May 2 – Trio for Oboe, Bassoon, and Piano, FP 43 by Francis Poulenc (1899-1963) was first performed in Paris, France

May 12 – Symphony No. 1 in F minor, op. 10 by Dmitri Shostakovich (1906-1975) was first performed in Saint Petersburg, Russia

June 26 – Sinfonietta by Leoš Janáček (1854-1928) was first performed in Prague, Czech Republic

October – Peter Warlock (1894-1930) completed Capriol Suite

October 31 – Symphony No. 5 in F♯ minor, “Dance Symphony”, by Emil von Reznicek (1860-1945) was first performed in Vienna, Austria

November 1The Profound Life of Saint Francis of Assisi, incidental music to the play by Henri Ghéon, by Aita Donostia (1886-1956) was first performed in Paris, France

December 26Tapiola, tone poem in B minor, op. 112 by Jean Sibelius (1865-1957) was first performed in New York, New York

1927
Fritz Kreisler (1875-1962) completed Gypsy Caprice

Ottorino Respighi (1879-1936) completed Three Botticelli Pictures

March 24Háry János Suite, op. 35a by Zoltán Kodály (1882-1967) was first performed in Barcelona, Spain

June 7Le pas d’acier (“The Steel Step”), ballet, op. 41 by Sergei Prokofiev (1891-1953) was first performed in Paris, France

June 14The Red Poppy, ballet, op. 70 by Reinhold Glière (1875-1956) was first performed in Moscow, Russia

October 27 – Dominick Argento (1927-2019) was born in York, Pennsylvania

1928
Leoš Janáček (1854-1928) completed Schluck und Jau, incidental music

Ottorino Respighi (1879-1936) completed Brazilian Impressions

Joaquín Rodrigo (1901-1999) completed the two-piano transcription of his orchestral piece, Cinco piezas infantiles (Five children’s pieces)

February 12Egdon Heath, tone poem, op. 47 by Gustav Holst (1874-1934) was first performed in New York, New York

June 12Gli uccelli (“The Birds”) by Ottorino Respighi (1879-1936) was first performed in São Paulo, Brazil

August 12 – Leoš Janáček (1854-1928) died in Ostrava, Czech Republic

September 11 – String Quartet No. 2, “Intimate Letters”, by Leoš Janáček (1854-1928) was first performed in Brno, Czech Republic

October 9 – Einojuhani Rautavaara (1929-2016) was born in Helsinki, Finland

December 13An American in Paris by George Gershwin (1898-1937) was first performed in New York, New York

1929
January 11 – Stabat Mater, op. 53 by Karol Szymanowski (1882-1937) was first performed in Warsaw, Poland

February 10 – Jerry Goldsmith (1929-2004) was born in Los Angeles, California

February 21Roman Festivals, tone poem by Ottorino Respighi (1879-1936) was first performed in New York, New York

May 21L’enfant prodigue (“The Prodigal Son”), ballet, op. 46 by Sergei Prokofiev (1891-1953) was first performed in Paris, France

November 7 – Suite-Divertissement, for violin, viola, cello, and piano, by Alexandre Tansman (1897-1986) was first performed in Brussels, Belgium

1910s

1930s

TYC 5134-1820-1: A New Double Star Discovery

Shadow path of TYC 5134-01820-1 occulted by asteroid 1330 Spiridonia – June 26, 2023 UT

On 26 June 2023 UT, Vince Sempronio near Benson, Arizona and David Oesper near Tucson, Arizona observed an occultation of the 12.2-magnitude* star Tycho 5134-1820-1 in the constellation Aquila by the 15.1-magnitude asteroid 1330 Spiridonia. The predicted magnitude drop should have been around 2.9 magnitudes (15.1m-12.2m) by both observers, but I observed only about a 0.2-magnitude drop, and Vince a 1.5 magnitude-drop. After expert analysis by David Gault and David Herald in Australia, it was determined that we had discovered a new double star!

Observer locations for the June 26, 2023 occultation event

Fortuitously, Vince had observed 1330 Spiridonia covering up only the primary (brightest) component, and I had observed 1330 Spiridonia covering up only the secondary component. Both of us made our observations with 8-inch telescopes.

Vince Sempronio’s light curve (11.2 seconds, 70 data points)
David Oesper’s light curve (60.7 seconds, 455 data points)

The double star solution from our observations gives the following:

G magnitude of the primary component: 12.4

G magnitude of the secondary component: 13.9

Separation: 59.7 milliarcseconds (0.0597 arcseconds)

Position Angle: 141.8° (eastward from north)

The double star solution

Follow up observations over time will be needed to determine whether this is an optical double (chance alignment) or a true binary system. The distance to TYC 5134-1820-1 is currently estimated to be between 2,689 and 2,883 light years (SIMBAD). Definitely not in the neighborhood.

Even though double stars are common in our galaxy (and everywhere else in the universe), and understanding that our observations represent only the tiniest contribution to scientific knowledge, there is satisfaction in knowing that we discovered something not known by anyone else before. Besides, you never know when a discovery such as this will draw attention to an unusual and astrophysically-interesting system.

In conclusion, here is but one example showing that observations of stellar occultations by the minor planets of our solar system presents an exquisite method of discovering very close double (and possibly binary) stars, not assayable by any other technique.

*Gaia G magnitude

Classical Music Timeline: 1910s

This is one of a series of postings of important classical music dates, from the 17th century to the present. Included are the date and location of the birth and death of composers, and the premiere date and location of the first public performance of works. When the premiere date and location is unknown, the date or year of completion of the work is given. Though reasonably comprehensive, this is a subjective list, so the choice of composers and works is mine. If you find any errors, or if you can offer a premiere date and location for a work where only the completion date or year is listed, please post a comment here.

1910
Fritz Kreisler (1875-1962) completed Caprice Viennois, for violin and piano, op. 2

Fritz Kreisler (1875-1962) completed Praeludium and Allegro (in the style of Pugnani), for violin and piano

March 1 – Suite in A major, op. 98b, B190, “American” by Antonín Dvořák (1841-1904) was first performed in Prague, Czech Republic

March 9 – Samuel Barber (1910-1981) was born in West Chester, Pennsylvania

April 23 – Italia, Rhapsody for Orchestra, op. 11, by Alfredo Casella (1883-1947) was first performed in Paris, France

May 29 – Mily Balakirev (1837-1910) died in Saint Petersburg, Russia

June 25The Firebird by Igor Stravinsky (1882-1971) was first performed in Paris, France

September 6 – Fantasia on a Theme by Thomas Tallis by Ralph Vaughan Williams (1872-1958) was first performed in Gloucester, England

September 12 – Symphony No. 8 in E♭ major by Gustav Mahler (1860-1911) was first performed in Munich, Germany

1911
Gustav Holst (1874-1934) completed Two Eastern Pictures, for women’s voices and harp (H. 112)

Maurice Ravel (1875-1937) completed Ma Mère l’Oye (Mother Goose) Suite

Fritz Kreisler (1875-1962) completed Recitative and Scherzo-Caprice, for solo violin, op. 6

Percy Grainger (1882-1961) completed Irish Tune from County Derry (BFMS No. 29)

February 21 – Berceuse élégiaque, op. 42 (BV 252a) by Ferruccio Busoni (1866-1924) was first performed in New York, New York

March 8 – Alan Hovhaness (1911-2000) was born in Somerville, Massachusetts

March 11 – Choral Hymns from the Rig Veda, Third Group, by Gustav Holst (1874-1934) was first performed in Blackburn, England

April 3 – Symphony No. 4 by Jean Sibelius (1865-1957) was first performed in Helsinki, Finland

May 2 – Invocation for Cello and Orchestra, op. 19, no. 2, by Gustav Holst (1874-1934) was first performed in London, England

May 18 – Gustav Mahler (1860-1911) died in Vienna, Austria

June 14 – Johan Svendsen (1840-1911) died in Copenhagen, Denmark

July 7 – Gian Carlo Menotti (1911-2007) was born in Cadegliano-Viconago, Italy

August 1 – Autumnal, op. 8, by Sergei Prokofiev (1891-1953) was first performed in Moscow, Russia

September 14 – Five Mystical Songs, for baritone, chorus, and orchestra, by Ralph Vaughan Williams (1872-1958) was first performed in Worcester, England

December 3 – Nino Rota (1911-1979) was born in Milan, Italy

December 6 – Choral Hymns from the Rig Veda, First Group, by Gustav Holst (1874-1934) was first performed in Newcastle-upon-Tyne, England

December 23 – I gioielli della Madonna (The Jewels of the Madonna), opera by Ermanno Wolf-Ferrari (1876-1948), was first performed in Berlin, Germany

1912
Ernst von Dohnányi (1877-1960) completed Three Pieces, op. 23

February 28 – Violin Concerto, op. 33 by Carl Nielsen (1865-1931) was first performed in Copenhagen, Denmark

March 22 – Choral Hymns from the Rig Veda, Second Group, by Gustav Holst (1874-1934) was first performed in London, England

April 22 – La Péri, ballet by Paul Dukas (1865-1935), was first performed in Paris, France

June 8 – Daphnis et Chloé by Maurice Ravel (1875-1937) was first performed in Paris, France

June 26 – Symphony No. 9 by Gustav Mahler (1860-1911) was first performed in Vienna, Austria

July 23 – Aristophanic Suite, The Wasps, by Ralph Vaughan Williams (1872-1958) was first performed in London, England

August 7 – Piano Concerto No. 1 in D♭ major, op. 10 by Sergei Prokofiev (1891-1953) was first performed in Moscow, Russia

August 13 – Jules Massenet (1842-1912) died in Paris, France

September 24 – The Sea, Suite for Orchestra, H. 100 by Frank Bridge (1879-1941) was first performed in London, England

1913
Gustav Holst (1874-1934) completed St. Paul’s Suite, in C major, op. 29, no. 2

Mario Castelnuovo-Tedesco (1895-1968) completed Questo fu il carro della Morte, op. 2

April 24 – Canto serioso, for horn and piano, FS 132 by Carl Nielsen (1865-1931) was first performed in Copenhagen, Denmark

May 6 – Gyula Dávid (1913-1977) was born in Kecskemét, Hungary

October 23 – On Hearing the First Cuckoo in Spring by Frederick Delius (1862-1934) was first performed in Leipzig, Germany

November 22 – Benjamin Britten (1913-1976) was born in Lowestoft, England

1914
Gustav Holst (1874-1934) completed A Dirge for Two Veterans, H. 121

Ernst von Dohnányi (1877-1960) completed Variations on a Nursery Song, op. 25

Ottorino Respighi (1879-1936) completed Il Tramonto (“The Sunset”), for mezzo-soprano and string quartet, P. 101

Ottorino Respighi (1879-1936) completed Sinfonia Drammatica in B♭ minor, P. 102

February 5 – Ten Pieces, op. 12 , for piano, by Sergei Prokofiev (1891-1953) was first performed in Moscow, Russia

March 18 – Choral Hymns from the Rig Veda, Fourth Group, by Gustav Holst (1874-1934) was first performed in London, England

March 27 – Symphony No. 2, “A London Symphony”, by Ralph Vaughan Williams (1872-1958) was first performed in London, England

May 9 – Carlo Maria Giulini (1914-2005) was born in Barletta, Italy

August 28 – Anatoly Lyadov (1855-1914) died near Borovichi, Russia

November 12 – Second Quintet in E♭ minor for Piano and Strings, op. 26, by Ernst von Dohnányi (1877-1960) was first performed in Berlin, Germany

1915
Claude Debussy (1862-1918) completed “Christmas Carol for Homeless Children”, for children’s chorus (Noël des enfants qui n’ont plus de maison: Nous n’avons plus de maison), CD 147

George Enescu (1881-1955) completed Orchestral Suite No. 2, in C major, op. 20

May – English Pastoral Impressions, op. 26, by Ernest Farrar (1885-1918) was first performed in Harrogate, England

1916
Kurt Atterberg (1887-1974) completed Symphony No. 3 in D major, op. 10, “Västkustbilder” (“West Coast Pictures”)

January 29 – Scythian Suite, op. 20 by Sergei Prokofiev (1891-1953) was first performed in Saint Petersburg, Russia

April 9 – Nights in the Gardens of Spain, for piano and orchestra, G. 49 by Manuel de Falla (1876-1946) was first performed in Madrid, Spain

April 11 – Alberto Ginastera (1916-1983) was born in Buenos Aires, Argentina

1917
Ottorino Respighi (1879-1936) completed the Ancient Airs and Dances, Suite No. 1, P 109

Heitor Villa-Lobos (1887-1959) completed Song of the Black Swan (Canto do cysne negro), for cello and piano, W122

Kurt Atterberg (1887-1974) completed the Suite No. 3, op. 19, no. 1, for violin, viola, and string orchestra

Ilse Fromm-Michaels (1888-1986) completed Piano Sonata, op. 6

Ilse Fromm-Michaels (1888-1986) completed Walzerreigen, op. 7

March 11The Fountains of Rome, tone poem by Ottorino Respighi (1879-1936) was first performed in Rome, Italy

May 3 – Schelomo: Hebraic Rhapsody for Cello and Orchestra, B. 39 by Ernest Bloch (1880-1959) was first performed in New York, New York

July 24 – Robert Farnon (1917-2005) was born in Toronto, Canada

1918
Lili Boulanger (1893-1918) completed D’un Soir Triste, symphonic poem

January – Lili Boulanger (1893-1918) completed the orchestral version of D’un matin de printemps

February 11 – Pan and Syrinx, symphonic poem in F major, op. 49 by Carl Nielsen (1865-1931) was first performed in Copenhagen, Denmark

February 11 – Romanian Folk Dances, Sz. 68 by Béla Bartók (1881-1945) was first performed in Budapest, Hungary

March 15 – Lili Boulanger (1893-1918) died in Mézy-sur-Seine, France

March 25 – Claude Debussy (1862-1918) died in Paris, France

April 9Le bourgeois gentilhomme, orchestral suite, op. 60 by Richard Strauss (1864-1949) was first performed in Berlin, Germany

April 21 – Symphony No. 1 in D major, op. 25, “Classical”, by Sergei Prokofiev (1891-1953) was first performed in Saint Petersburg, Russia

July 3 – Heroic Elegy, op. 36, by Ernest Farrar (1885-1918) was first performed in Harrogate, England

August 25 – Leonard Bernstein (1918-1990) was born in Lawrence, Massachusetts

September 18 – Ernest Farrar (1885-1918) died near Le Cateau, Cambrai, France (World War I casualty)

September 29 – The Planets, op. 32 by Gustav Holst (1874-1934) was first performed in London, England

1919
Gustav Holst (1874-1934) completed Ode to Death, for chorus and orchestra, op. 38

Percy Grainger (1882-1961) completed the orchestral version of Colonial Song (Sentimental No. 1)

Peter Warlock (1894-1930) completed the choral work Balulalow

George Gershwin (1898-1937) completed Lullaby, for string quartet

March 31 – Two Studies for Doktor Faust, BV 282 by Ferruccio Busoni (1866-1924) was first performed in Zürich, Switzerland

April 11 – Le Tombeau de Couperin (piano), M. 68 by Maurice Ravel (1875-1937) was first performed in Paris, France

June 22 – The White Peacock (orchestral version) by Charles Griffes (1884-1920) was first performed in New York, New York

October 27 – Cello Concerto in E minor, op. 85 by Edward Elgar (1857-1934) was first performed in London, England

November 16 – Poem for Flute and Orchestra, A. 93 by Charles Griffes (1884-1920) was first performed in New York, New York

November 24 – Symphony No. 5 in E♭ major, op. 82 by Jean Sibelius (1865-1957) was first performed in Helsinki, Finland

November 28 – The Pleasure Dome of Kubla Khan, tone poem by Charles Griffes (1884-1920) was first performed in Boston, Massachusetts

1900s

1920s

Does 790 Pretoria Have a Moon?

On 14 Dec 2023 at 10:17:12.943 UT, the 13.6-magnitude outer main belt asteroid 790 Pretoria was in the middle of covering up the 10.9-magnitude star TYC 1299-730-1 (UCAC4 532-018101) in the constellation Taurus, as seen from my vantage point on the west side of Tucson, Arizona.

Stellar Occultation of TYC 1299-730-1 by 790 Pretoria

I observed a 6.6-second occultation, but noticed a single-point event with the same magnitude drop as the main occultation, but 0.5 second earlier. A close up of that section of the light curve is shown below.

Stellar Occultation of TYC 1299-730-1 by 790 Pretoria showing possible moonlet

If 790 Pretoria has a moon that also occulted the star, then you would expect the magnitude drop when the star is covered up to be the same—the magnitude of the asteroid (and its satellite) alone. This is indeed the case here.

An analysis of all the data points prior to these two occultation events indicates that there is only a 1/130,000 chance that the single-point dip was caused by noise. The time-resolution of each data point is 0.03 seconds, so it seems likely that the moonlet occultation event was very close to 0.03 seconds in duration, as the data points on either side fall comfortably within the baseline.

Originally, there were four other observers signed up for this event (three in Arizona and two in Texas), but the other two Arizona observers were not able to observe and the two Texas observers were clouded out, leaving only me with my 8-inch Meade LX90 telescope on the back patio of my home to observe the event.

No moon of 790 Pretoria has yet been reported, and since no one else observed the 14 Dec 2023 event, my observation can only serve as a suggestion that 790 Pretoria might have a moon, but not proof.

Prior to my observation there were 14 stellar occultation events of 790 Pretoria observed, the first in 1998 and the last in 2021. We don’t yet have a shape model for 790 Pretoria.

Only three light curves from previous 790 Pretoria occultation events are available through the VizieR archive. These are listed and shown below.

VizieR Light Curves of previous stellar occultations by 790 Pretoria
LC 238 by R. Sandy
LC 7658 by Dean Hooper
LC 7939 by S. Messner

Here is a list of all previous occultation chords for 790 Pretoria.

And details of the North American events, including the 14 Dec 2023 event I observed.

The 19 Jul 2009 event resulted in the discovery that TYC 2255-01354-1 is a double star.

Classical Music Timeline: 1900s

This is one of a series of postings of important classical music dates, from the 17th century to the present. Included are the date and location of the birth and death of composers, and the premiere date and location of the first public performance of works. When the premiere date and location is unknown, the date or year of completion of the work is given. Though reasonably comprehensive, this is a subjective list, so the choice of composers and works is mine. If you find any errors, or if you can offer a premiere date and location for a work where only the completion date or year is listed, please post a comment here.

1900
Jean Sibelius (1865-1957) completed the final version of The Swan of Tuonela, op. 22, no. 3

March 2 – Kurt Weill (1900-1950) was born in Dessau, Germany

April 7 – Piano Concerto in C♯ minor, op. 45, by Amy Beach (1867-1944) was first performed in Boston, Massachusetts

July 1 – Symphony No. 1 in E minor, op. 39, by Jean Sibelius (1865-1957) was first performed in Berlin, Germany

July 2Finlandia, op. 26, by Jean Sibelius (1865-1957) was first performed in Helsinki, Finland

July 12 – Requiem in D minor, op. 48, by Gabriel Fauré (1845-1924) was first performed in Paris, France

November 3The Tale of Tsar Saltan, opera, by Nikolai Rimsky-Korsakov (1844-1908) was first performed in Moscow, Russia

November 14 – Aaron Copland (1900-1990) was born in Brooklyn, New York

1901
Jean Sibelius (1865-1957) completed The Snow is Falling, op. 1, no. 5, for children’s chorus and organ

January 27 – Giuseppe Verdi (1813-1901) died in Milan, Italy

February 3 – Pelléas et Mélisande Suite, op. 80, by Gabriel Fauré (1845-1924) was first performed in Paris, France

February 7Pohádka (Fairy Tale), op. 16, by Josef Suk (1874-1935) was first performed in Prague, Czech Republic

September 14Chanson de Nuit, in G major, op. 15, no. 1, and Chanson de Matin, in G major, op. 15, no. 2 by Edward Elgar (1857-1934) were first performed in London, England

October 19 – Pomp and Circumstance, March No. 1 and March No. 2, by Edward Elgar (1857-1934) were first performed in Liverpool, England

October 27Three Nocturnes, CD 98, by Claude Debussy (1862-1918) was first performed in Paris, France

November 9 – Piano Concerto No. 2 in C minor, op. 18, by Sergei Rachmaninoff (1873-1943) was first performed in Moscow, Russia

November 22 – Joaquín Rodrigo (1901-1999) was born in Sagunto, Valencia, Spain

1902
Josef Suk (1874-1935) completed Elegie (Under the Impression of Zeyer’s Vyšehrad), op. 23

March 29 – William Walton (1902-1983) was born in Oldham, England

June 28 – Richard Rodgers (1902-1979) was born in New York, New York

September 10 – The Witch of Atlas, Tone Poem for Orchestra No. 5, by Granville Bantock (1868-1946), was first performed in Worcester, England

1903
June 6 – Aram Khachaturian (1903-1978) was born in Kojori, Georgia

October 8 – Helios Overture, op. 17, by Carl Nielsen (1865-1931) was first performed in Copenhagen, Denmark

October 19 – Vittorio Giannini (1903-1966) was born in Philadelphia, Pennsylvania

November 10 – Symphony No. 2 in D major, op. 43, by Jean Sibelius (1865-1957) was first performed in Stockholm, Sweden

1904
January 13 – Richard Addinsell (1904-1977) was born in London, England

March 16In the South (Alassio), op. 50, by Edward Elgar (1857-1934) was first performed in London, England

March 30Koanga, opera, by Frederick Delius (1862-1934) was first performed in Wuppertal, Germany

May 1 – Antonín Dvořák (1841-1904) died in Prague, Czech Republic

October 18 – Symphony No. 5 in C♯ minor by Gustav Mahler (1860-1911) was first performed in Cologne, Germany

December 2Songs of Travel by Ralph Vaughan Williams (1872-1958) was first performed in London, England

December 30 – Dmitry Kabalevsky (1904-1987) was born in Saint Petersburg, Russia

1905
Claude Debussy (1862-1918) completed Suite bergamasque, CD 82

Ernst von Dohnányi (1877-1960) completed Winterreigen, op. 13

August 23 – Constant Lambert (1905-1951) was born in London, England

October 15La Mer, CD 111, by Claude Debussy (1862-1918) was first performed in Paris, France

October 19 – Violin Concerto in D minor, op. 47, by Jean Sibelius (1865-1957) was first performed in Berlin, Germany

November 7 – William Alwyn (1905-1985) was born in Northampton, England

December 9 – Dance of the Seven Veils, from Salome, opera by Richard Strauss (1864-1949) was first performed in Dresden, Germany

1906
Aita Donostia (1886-1956) completed Rapsodia Baskongada [Basque Rhapsody]

Maurice Ravel (1875-1937) completed the orchestration of “Une barque sur l’océan” from Miroirs

March 7 – Konzertstück in D major, for cello and orchestra, op. 12, by Ernst von Dohnányi (1877-1960) was first performed in Budapest, Hungary

May 9 – Iberia, Book 1, by Isaac Albéniz (1860-1909) was first performed in Paris, France

May 27 – Symphony No. 6 in A minor by Gustav Mahler (1860-1911) was first performed in Essen, Germany

July 24 – Alfredo Casella (1883-1947) completed Symphony No. 1 in B minor, op. 5

September 25 – Dmitri Shostakovich (1906-1975) was born in Saint Petersburg, Russia

December 6 – Orchestral version of Dolly Suite, op. 56 by Gabriel Fauré (1845-1924) was first performed in Monte Carlo, Monaco [orchestrated by Henri Rabaud (1873-1949)]

1907
February 3 – Symphony No. 2 in C minor, “Asrael Symphony”, op. 27, by Josef Suk (1874-1935) was first performed in Prague, Czech Republic

February 16 – Alec Wilder (1907-1980) was born in Rochester, New York

February 21 – “The Walk to the Paradise Garden”, from the opera A Village Romeo and Juliet, by Frederick Delius (1862-1934) was first performed in Berlin, Germany

February 22 – Introduction and Allegro for Harp, Flute, Clarinet, and Strings by Maurice Ravel (1875-1937) was first performed in Paris, France

September 4 – Edvard Grieg (1843-1907) died in Bergen, Norway

September 11 – Iberia, Book 2, by Isaac Albéniz (1860-1909) was first performed in Saint-Jean-de-Luz, France

November 17 – James Moody (1907-1995) was born in Belfast, Northern Ireland

1908
Sigfrid Karg-Elert (1877-1933) completed Marche triomphale, “Nun danket alle Gott” op. 65, no. 59 (for organ)

January 2 – Iberia, Book 3, by Isaac Albéniz (1860-1909) was first performed in Paris, France

January 23 – Edward MacDowell (1860-1908) died in New York, New York

January 26 – Symphony No. 2 in E minor, op. 27, by Sergei Rachmaninoff (1873-1943) was first performed in Saint Petersburg, Russia

February 18 – Brigg Fair, An English Rhapsody, by Frederick Delius (1862-1934) was first performed in London, England

March 15Rapsodie espagnole, M. 54, by Maurice Ravel (1875-1937) was first performed in Paris, France

May 15 – Lars-Erik Larsson (1908-1986) was born in Åkarp, Sweden

June 21 – Nikolai Rimsky-Korsakov (1844-1908) died near Luga, Leningrad Oblast, Russia

June 29 – Leroy Anderson (1908-1975) was born in Cambridge, Massachusetts

September 20 – Pablo de Sarasate (1844-1908) died in Biarritz, France

October 18 – Drapa, op. 27, for Large Orchestra by Hugo Alfvén (1872-1960) was first performed in Stockholm, Sweden

October 19 – Geirr Tveitt (1908-1981) was born in Bergen, Norway

November 19 – Jean-Yves Daniel-Lesur (1908-2002) was born in Paris, France

December 10 – Olivier Messiaen (1908-1992) was born in Avignon, France

1909
January 9Gaspard de la nuit, M. 55, by Maurice Ravel (1875-1937) was first performed in Paris, France

February 9 – Iberia, Book 4, by Isaac Albéniz (1860-1909) was first performed in Paris, France

February 21 – The Enchanted Lake, op. 62, by Anatoly Lyadov (1855-1914) was first performed in Saint Petersburg, Russia

February 22In the Fen Country, tone poem by Ralph Vaughan Williams (1872-1958) was first performed in London, England

May 1 – Isle of the Dead in A minor, op. 29, symphonic poem by Sergei Rachmaninoff (1873-1943) was first performed in Moscow, Russia

May 1 – George Melachrino (1909-1965) was born in London, England

May 18 – Isaac Albéniz (1860-1909) died in Cambo-les-Bains, France

June 23 – Clive Richardson (1909-1998) was born in Paris, France

October 7Le Coq d’Or, opera by Nikolai Rimsky-Korsakov (1844-1908) was first performed in Moscow, Russia

November 28 – Piano Concerto No. 3 in D minor, op. 30, by Sergei Rachmaninoff (1873-1943) was first performed in New York, New York

December 12Kikimora, op. 63, tone poem by Anatoly Lyadov (1855-1914) was first performed in Saint Petersburg, Russia

December 15 – Francisco Tárrega (1852-1909) died in Barcelona, Spain

December 18 – Octet for Double String Quartet in C major, op. 7, by George Enescu (1881-1955) was first performed in Paris, France

1890s

1910s

Superheavy Elements

There are currently 118 known chemical elements. The most recent, 118 Oganesson (chemical symbol Og), was first synthesized in 2002 . Its only known isotope, \mathbf{\frac{294}{118}\textrm{\textbf{Og}}} (118 protons + 176 neutrons = 294 nucleons), has a half-life of just 0.0007 seconds, and to date only five oganesson atoms have been produced.

It is possible, given our current knowledge of nuclear physics, that there is at least one island of nuclear stability where stable or quasi-stable isotopes of superheavy elements exist. One such island might exist around Z = 164, that is an element having 164 protons and something like 246 neutrons.

Are any superheavy elements stable enough to be found in nature? Is there any astrophysical process that could produce them? If superheavy elements exist, we would expect such matter to have a mass density in excess of the densest-known stable element, osmium (element 76), 22.59 g/cm3. Superheavy elements around Z = 164 are expected to have a mass density between 36.0 and 68.4 g/cm3.

Researchers at the University of Arizona in Tucson explain that superheavy elements might exist in nature, either in the exotic form of extremely dense alpha matter — nuclear matter composed of alpha particles in a Bose-Einstein condensate-like configuration — or as standard matter. Though a long shot, they suggest looking at asteroids (and other objects) possibly having anomalously high densities, which they call Compact Ultradense Objects (CUDOs).

In order to calculate the density of an asteroid, you need to measure its volume and its mass. The volume can be calculated if you know the size and shape of the asteroid, and the mass can best be calculated if the asteroid has a satellite (either natural or artificial), or from a spacecraft flyby. A less certain mass can be calculated by measuring how an asteroid gravitationally perturbs a neighboring asteroid as they both orbit around the Sun. We must keep in mind that any asteroids that presently appear to have an unusually high density may later be found to have a more normal density upon better estimates of the size and shape of the asteroid, and especially its mass.

The most recent available table of asteroid bulk densities can be found on the SiMDA (Size, Mass, and Density of Asteroids) web site. In that table, a bulk density accuracy rank of A (most accurate) to E (least accurate), and X (unrealistic) for each object is given. Among the A-rank densities, we find that 16 Psyche is listed as having the highest bulk density of 3.90 ± 0.29 g/cm3. NASA’s Psyche robotic spacecraft was launched on October 13, 2023 and is expected to begin orbiting 16 Psyche in August 2029.

Among the B-rank densities, two asteroids have nominal bulk densities higher than 16 Psyche’s: 135 Hertha at 4.45 ± 0.63 g/cm3 and 192 Nausikaa at 4.10 ± 0.70 g/cm3.

Among the C-rank densities, 21 asteroids have nominal bulk densities higher than 16 Psyche’s:

Rank "C" Asteroid Densities (> 16 Psyche)

206 Hersilia 6.08 ± 2.55
181 Eucharis 5.46 ± 2.43
410 Chloris 4.96 ± 2.41
679 Pax 4.95 ± 1.45
110 Lydia 4.88 ± 1.75
97 Klotho 4.80 ± 1.01
124 Alkeste 4.74 ± 2.22
275 Sapientia 4.69 ± 1.12
92 Undina 4.64 ± 1.75
34 Circe 4.63 ± 1.21
56 Melete 4.57 ± 1.07
102 Miriam 4.46 ± 1.88
680 Genoveva 4.37 ± 2.06
129 Antigone 4.35 ± 2.14
69 Hesperia 4.33 ± 1.11
709 Fringilla 4.12 ± 1.98
89 Julia 4.01 ± 1.61
675 Ludmilla 3.99 ± 1.94
201 Penelope 3.99 ± 1.97
455 Bruchsalia 3.93 ± 1.29
354 Eleonora 3.93 ± 1.84

Among the D-rank densities, 16 asteroids have nominal bulk densities higher than 16 Psyche’s:

Rank "D" Asteroid Densities (> 16 Psyche)

250 Bettina 7.84 ± 5.42
138 Tolosa 7.69 ± 4.39
360 Carlova 6.62 ± 4.51
388 Charybdis 5.80 ± 3.66
43 Ariadne 5.54 ± 2.84
536 Merapi 5.39 ± 4.77
172 Baucis 5.34 ± 3.31
420 Bertholda 4.94 ± 4.44
103 Hera 4.78 ± 2.87
491 Carina 4.58 ± 3.11
683 Lanzia 4.49 ± 2.69
849 Ara 4.29 ± 2.18
506 Marion 4.16 ± 2.29
363 Padua 4.10 ± 2.25
705 Erminia 4.02 ± 2.39
786 Bredichina 3.91 ± 2.28

Among the E-rank densities, 7 asteroids have nominal bulk densities higher than 16 Psyche’s:

Rank "E" Asteroid Densities (> 16 Psyche)

2004 PB108 6.74 ± 7.23
1013 Tombecka 6.39 ± 53.43
306 Unitas 6.23 ± 6.77
132 Aethra 5.09 ± 7.72
445 Edna 4.60 ± 4.91
147 Protogeneia 4.18 ± 5.03
769 Tatjana 4.09 ± 4.38

Among the X-rank densities, 14 asteroids have nominal bulk densities higher than 16 Psyche’s:

Rank "X" Asteroid Densities (> 16 Psyche)

1686 De Sitter 430.61 ± 213.19
33 Polyhymnia 75.32 ± 9.72
1428 Mombasa 43.03 ± 14.78
152 Atala 42.29 ± 10.80
949 Hel 12.31 ± 5.14
582 Olympia 9.98 ± 27.31
61 Danae 9.74 ± 9.45
665 Sabine 9.05 ± 5.19
217 Eudora 8.94 ± 0.64
204 Kallisto 8.89 ± 26.79
234 Barbara 8.89 ± 29.30
202 Chryseis 8.66 ± 1.63
126 Velleda 8.64 ± 106.21
67 Asia 8.59 ± 1.23

Obviously, most—if not all—of the asteroids listed above will eventually be found to have bulk densities less than that of 16 Psyche as more accurate masses and volumes are determined. Presently, only the following asteroids have minimum bulk densities greater than that of 16 Psyche, assuming the mean error listed is correct:

Asteroid Densities > 16 Psyche (within error)

1686 De Sitter 430.61 ± 213.19
33 Polyhymnia 75.32 ± 9.72
1428 Mombasa 43.03 ± 14.78
152 Atala 42.29 ± 10.80
949 Hel 12.31 ± 5.14
217 Eudora 8.94 ± 0.64
202 Chryseis 8.66 ± 1.63
67 Asia 8.59 ± 1.23

LaForge, Price, and Rafelski choose 33 Polyhymnia as the current best candidate to search for superheavy elements. Even a small amount of superheavy elements (especially in the alpha matter state) could significantly raise the bulk density of the asteroid as a whole. Kretlow lists the mass of 33 Polyhymnia as (6.20 ± 0.74) × 1018 kg and its volume-equivalent diameter as 54.0 ± 0.9 km, giving a bulk density around 75 g/cm3.

This finding is not without controversy, however. See the following discussion:

https://groups.io/g/mpml/topic/33_polyhymnia/101917502

References
Kretlow, M. Size, Mass and Density of Asteroids (SiMDA) – A Web Based Archive and Data Service” (2020). https://astro.kretlow.de/?SiMDA

LaForge, E., Price, W. & Rafelski, J. Superheavy elements and ultradense matter. Eur. Phys. J. Plus 138, 812 (2023). https://arxiv.org/abs/2306.11989
https://doi.org/10.1140/epjp/s13360-023-04454-8