1692 Subbotina

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1692 Subbotina, provisional designation Template:Mp, is a dark background asteroid from the central region of the asteroid belt, approximately Script error: No such module "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 Template: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 Template:MoMP was published by the Minor Planet Center on 1 June 1967 (M.P.C. 2740Script error: No such module "Check for unknown parameters".).[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 Script error: No such module "val". hours with a brightness variation of Script error: No such module "val". in magnitude (U=3Script error: No such module "Check for unknown parameters".).[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

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  5. ↑ Script error: No such module "citation/CS1".
  6. ↑ a b Script error: No such module "citation/CS1".
  7. ↑ Script error: No such module "citation/CS1".
  8. ↑ a b Script error: No such module "citation/CS1".
  9. ↑ Script error: No such module "citation/CS1".
  10. ↑ a b Script error: No such module "Citation/CS1".
  11. ↑ a b Script error: No such module "Citation/CS1".
  12. ↑ Script error: No such module "Citation/CS1".
  13. ↑ Script error: No such module "Citation/CS1". (catalog)
  14. ↑ Script error: No such module "Citation/CS1".
  15. ↑ Script error: No such module "Citation/CS1". (online, AcuA catalog p. 153)
  16. ↑ Script error: No such module "Citation/CS1".

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External links

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