Heinrich Louis d'Arrest
German astronomer (1822–1875)
Heinrich Louis d'Arrest | |
|---|---|
 Heinrich Louis d'Arrest | |
| Born | 13 August 1822 Berlin |
| Died | 14 June 1875(1875-06-14) (aged 52) Copenhagen |
| Nationality | German |
| Known for | Neptune |
| Awards | Gold Medal of the Royal Astronomical Society Lalande Prize (1844) |
| Scientific career | |
| Doctoral students | Thorvald N. Thiele |
Heinrich Louis d'Arrest (13 August 1822 – 14 June 1875; German pronunciation: [daˈʁɛ] [1]) was a German astronomer, born in Berlin. His name is sometimes given as Heinrich Ludwig d'Arrest.
Biography
While still a student at the University of Berlin, d'Arrest was party to Johann Gottfried Galle's search for Neptune. On 23 September 1846, he suggested that a recently drawn chart of the sky, in the region of Urbain Le Verrier's predicted location, could be compared with the current sky to seek the displacement characteristic of a planet, as opposed to a stationary star. Neptune was discovered that very night.
D'Arrest's later work at the Leipzig Observatory led him, in 1851, to the discovery of the comet named for him (formally designated 6P/d'Arrest). He also studied asteroids, discovering 76 Freia, nebulae, and galaxies, discovering NGC 1 in 1861 and NGC 26 and NGC 358 in 1865.
In 1864 D'Arrest made an unsuccessful search for Martian satellites, and posited an upper limit of 70 minutes of arc as the distance from Mars within which a moon should be sought.[2]
He won the Gold Medal of the Royal Astronomical Society in 1875.
In 1857, he married Auguste Emilie Möbius, daughter of his then-supervisor, August Ferdinand Möbius.[3] He died in Copenhagen, Denmark.
Honours
The crater D'Arrest on the Moon, the crater D'Arrest on the Martian satellite Phobos, as well as the asteroid 9133 d'Arrest were named after him.
See also
References
- ^ Müller, August, Allgemeines Wörterbuch der Aussprache ausländischer Eigennamen (7th ed., 1903), p. 34.
- ^ Lord Lindsay, "Address," Monthly Notices of the Royal Astronomical Society 39:4 (Feb. 14, 1879), p. 311.
- ^ Hockey, Thomas (2009). The Biographical Encyclopedia of Astronomers. Springer Publishing. ISBN 978-0-387-31022-0. Retrieved August 22, 2012.
External links
- Leipzig 35//0000265.000.html Awarding of RAS gold medal: MNRAS 35 (1875) 265[permanent dead link]
Obituaries
- AN 86 (1875) 63/64[permanent dead link] (one paragraph, in German)
- MNRAS 36 (1876) 155
Further reading
- Dieke, Sally (1970). "Heinrich Louis D' Arrest". Dictionary of Scientific Biography. Vol. 1. New York: Charles Scribner's Sons. pp. 295–296. ISBN 0-684-10114-9.
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