Rahul Sharma (Editor)

1692 Subbotina

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Discovered by
  
G. Neujmin

MPC designation
  
1692 Subbotina

Discovered
  
16 August 1936

Orbits
  
Sun

Discovery site
  
Simeiz Observatory

Discovery date
  
16 August 1936

Minor planet category
  
main-belt · (middle)

Absolute magnitude
  
11.3

Discoverer
  
Grigory Neujmin

Asteroid group
  
Asteroid belt

Named after
  
Mikhail F. Subbotin (Soviet scientist)

Alternative names
  
1936 QD · 1927 SL 1930 FG · 1931 OA 1935 GJ · 1935 JJ 1940 LK · 1941 SO1 1941 UA · 1949 HL1 1950 RZ · 1951 YM1 1955 SO2 · 1964 RC

Similar
  
Sun, 951 Gaspra, 824 Anastasia, 847 Agnia, 762 Pulcova

1692 Subbotina, provisional designation 1936 QD, is a carbonaceous asteroid from the middle region of the asteroid belt, approximately 37 kilometers in diameter. It was discovered by Russian astronomer Grigory Neujmin at the Crimean Simeiz Observatory on 16 August 1936. On the following night, astronomer Karl Reinmuth independently discovered the body at Heidelberg, Germany.

The dark C-type asteroid is also classified as a Cg-subtype on the SMASS taxonomic scheme. It orbits the Sun at a distance of 2.4–3.2 AU once every 4 years and 8 months (1,699 days). Its orbit has an eccentricity of 0.14 and an inclination of 2° with respect to the ecliptic. The first used observation was made at Heidelberg Observatory in 1931, extending the asteroid's observation arc by 5 years prior to its discovery. However, Subbotina had already been identified as 1927 SL at the discovering observatory in 1927.

A rotational light-curve was obtained from photometric observations made by Italian astronomer Silvano Casulli and French astronomer Laurent Bernasconi in October 2006. The light-curve gave a well-defined rotation period of 7000924569999999999♠9.2457±0.0005 hours with a brightness variation of 6999300000000000000♠0.3 in magnitude (U=3).

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 36.1 and 39.9 kilometers in diameter and its surface has a notably low albedo in the range of 0.034 to 0.049. The Collaborative Asteroid Lightcurve Link derives an albedo of 0.04 and a diameter of 36.5 kilometers.

The minor planet was named in memory of eminent Soviet scientist, Mikhail F. Subbotin (1893–1966), long-time director of the Institute of Theoretical Astronomy in former Leningrad. The lunar crater Subbotin was also named in his honour. Naming citation was published before November 1977 (M.P.C. 2740).

References

1692 Subbotina Wikipedia