Английская Википедия:1692 Subbotina
Шаблон:Short description Шаблон:Infobox planet
1692 Subbotina, provisional designation Шаблон:Mp, is a dark background asteroid from the central region of the asteroid belt, approximately Шаблон:Convert in diameter. The carbonaceous Cg-type asteroid has a rotation period of 9.2 hours.[1] It was discovered by Grigory Neujmin at the Crimean Simeiz Observatory in 1936, and later named after Soviet mathematician and astronomer Mikhail Subbotin.[2][3]
Discovery
Subbotina was discovered by Soviet-Russian astronomer Grigory Neujmin at the Crimean Simeiz Observatory on 16 August 1936.[2] On the following night, astronomer Karl Reinmuth independently discovered the body at the Heidelberg Observatory in Germany.[3] The asteroid was first observed as Шаблон:Mp at the discovering observatory in September 1927. Its first used observation was made at Heidelberg in July 1931, extending the body's observation arc by 5 years prior to its official discovery observation in 1936.[2]
Naming
This minor planet was named in memory of eminent Soviet mathematician and astronomer, Mikhail Subbotin (1893–1966), long-time director of the Institute of Theoretical Astronomy (ITA) in former Leningrad. The lunar crater Subbotin was also named in his honour.[3][4] The official Шаблон:MoMP was published by the Minor Planet Center on 1 June 1967 (Шаблон:Small).[5]
Orbit and classification
Subbotina is a non-family asteroid from the main belt's background population.[6][7] It orbits the Sun in the central asteroid belt at a distance of 2.4–3.2 AU once every 4 years and 8 months (1,700 days; semi-major axis of 2.79 AU). Its orbit has an eccentricity of 0.14 and an inclination of 2° with respect to the ecliptic.[8]
Physical characteristics
In the SMASS-II taxonomy, Subbotina has been characterized as a dark Cg-type, a subtype of the wider group of carbonaceous C-type asteroids with low albedos.[8]
Rotation period
In October 2006, a rotational lightcurve of Subbotina was obtained from photometric observations by Italian Silvano Casulli and French Laurent Bernasconi, both amateur astronomers.[9] Lightcurve analysis gave a well-defined rotation period of Шаблон:Val hours with a brightness variation of Шаблон:Val in magnitude (Шаблон:Small).[1] Somewhat higher amplitudes of 0.42 and 0.62 magnitude were found by the NEOWISE mission.[10][11]
Diameter and albedo
According to the space-based surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Subbotina measures between 34.8 and 43.0 kilometers in diameter and its surface has a notably low albedo in the range of 0.02 to 0.049.[6][12][13][14][15][10][1][16][11] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.04 and a diameter of 36.5 kilometers with an absolute magnitude of 11.3.[1]
References
External links
- Laurent Bernasconi – astronomy homepage
- Asteroid Lightcurve Database (LCDB), query form (info Шаблон:Webarchive)
- 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
- Шаблон:AstDys
- Шаблон:JPL small body
Шаблон:Use dmy dates Шаблон:Minor planets navigator Шаблон:Small Solar System bodies
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