1905 Ambartsumian
|
Light curve-based 3D-model of 1905 Ambartsumian | |
| Discovery [1] | |
|---|---|
| Discovered by | T. Smirnova |
| Discovery site | CrAO - Nauchnyj |
| Discovery date | 14 May 1972 |
| Designations | |
| MPC designation | 1905 Ambartsumian |
Named after |
Victor Ambartsumian (theoretical astrophysicist)[2] |
|
1972 JZ · 1932 FC 1952 HO3 · 1959 QD 1962 JX · 1969 PF 1976 SS5 | |
| main-belt | |
| Orbital characteristics [1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 83.37 yr (30450 days) |
| Aphelion | 2.5839 AU (386.55 Gm) |
| Perihelion | 1.8635 AU (278.78 Gm) |
| 2.2237 AU (332.66 Gm) | |
| Eccentricity | 0.16199 |
| 3.32 yr (1211.2 d) | |
| 46.467° | |
| 0° 17m 50.028s / day | |
| Inclination | 2.6153° |
| 201.37° | |
| 61.599° | |
| Earth MOID | 0.84834 AU (126.910 Gm) |
| Jupiter MOID | 2.4765 AU (370.48 Gm) |
| Jupiter Tisserand parameter | 3.629 |
| Physical characteristics | |
| Dimensions | 12±5 km (calculated)[3] |
| 12.8 | |
|
| |
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1905 Ambartsumian, provisional designation 1972 JZ, is an asteroid from the inner regions of the asteroid belt, roughly 12 kilometers in diameter. It was discovered by Russian female astronomer Tamara Smirnova at the Crimean Astrophysical Observatory in Nauchnyj on 14 May 1972.[4]
The asteroid orbits the Sun at a distance of 1.9–2.6 AU once every 3 years and 4 months (1,211 days). Its orbit shows an eccentricity of 0.16 and is tilted by 3 degrees to the plane of the ecliptic. Little is known about the asteroids size, composition, albedo and rotation, despite having a well-observed orbit with the lowest possible uncertainty – which is denoted by a condition code of 0 – and an observation arc that spans over a period of more than 80 years.[1] With an absolute magnitude of 12.8, the asteroid's diameter could be anywhere between 7 and 17 kilometers for an assumed albedo in the range of 0.05–0.25 (see NASA's conversion table).[3] Since an asteroid from the inner main-belt typically has a spectral type of a brighter, rocky body, rather than a darker, carbonaceous one, its true diameter may be on the lower end of NASA's generic conversion table, as, for a given absolute magnitude, an asteroid's diameter decreases, when its albedo increases.
The asteroid was named after Soviet–Armenian scientist Victor Ambartsumian (1908–1996), founder of the Soviet School for Astrophysics, president of the Academy of Sciences of the Armenian SSR, director of the Byurakan Observatory, and president of the IAU (1961–1964).[2]
References
- 1 2 3 "JPL Small-Body Database Browser: 1905 Ambartsumian (1972 JZ)" (2015-08-14 last obs.). Jet Propulsion Laboratory. Retrieved 19 April 2016.
- 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1905) Ambartsumian. Springer Berlin Heidelberg. p. 153. ISBN 978-3-540-29925-7. Retrieved 27 November 2015.
- 1 2 "Absolute Magnitude (H)". NASA/JPL. Retrieved 2014-06-28.
- ↑ "1905 Ambartsumian (1972 JZ)". Minor Planet Center. Retrieved 27 November 2015.
External links
- Asteroid Lightcurve Database (LCDB), query form (info)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- 1905 Ambartsumian at the JPL Small-Body Database
