Discovered by L. G. Karachkina MPC designation 2892 Filipenko Discovered 13 January 1983 Orbits Sun Asteroid group Asteroid belt | Discovery date 13 January 1983 Minor planet category main-belt · (outer) Absolute magnitude 10.2 | |
Named after Aleksandr Filipenko (surgeon) Alternative names 1983 AX2 · 1936 QK11953 SB · 1953 SL1955 DO · 1957 KP1964 PA · A910 CK People also search for Asteroid belt, Sun, 3067 Akhmatova | ||
2892 Filipenko, provisional designation 1983 AX2, is a carbonaceous asteroid from the outer region of the asteroid belt, approximately 60 kilometers in diameter. It was discovered on 13 January 1983, by Russian female asteronomer Lyudmila Karachkina at Crimean Astrophysical Observatory on the Crimean peninsula.
Filipenko is a dark C-type asteroid and orbits the Sun at a distance of 2.5–3.8 AU once every 5 years and 8 months (2,064 days). Its orbit has an eccentricity of 0.21 and an inclination of 17° with respect to the ecliptic. First identified as A910 CK at Taunton Observatory (803) in 1910, Filipenko's first used observation was made at the Finnish Turku Observatory in 1953, extending the body's observation arc by 30 years prior to its official discovery observation.
According to the 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, Filipenko measures between 56.1 and 69.5 kilometers in diameter and its surface has an albedo between 0.030 and 0.046. The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0426 and a smaller diameter of 56.0 kilometers, based on an absolute magnitude of 10.3.
In November 2004, a rotational light-curve of Filipenko was obtained from photometric observations by Robert D. Stephens at the Santana Observatory (646), California, and gave a well-defined rotation period of 7001140000000000000♠14.00±0.01 hours with a brightness variation of 6999210000000000000♠0.21±0.03 magnitude (U=3).
This minor planet is named for Aleksandr Filipenko chief surgeon at the hospital in Bakhchisarai located on the Crimean peninsula. He had saved the life of a friend of the discoverer Lyudmila Karachkina. Naming citation was published on 13 July 1984 (M.P.C. 8913).