2031 BAM
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2031 BAM, provisional designation Template:Mp, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 8 kilometers in diameter. It was discovered on 8 October 1969, by Soviet astronomer Lyudmila Chernykh at the Crimean Astrophysical Observatory in Nauchnyj, on the Crimean peninsula.[1] The asteroid was named for those who built the Baikal–Amur Mainline (BAM; БАМ), a Siberian railway line.[2]
Orbit and classification
BAM is a member of the Flora family (402Script error: No such module "Check for unknown parameters".),[3][4] a giant asteroid family and the largest family of stony asteroids in the main belt.[5]Template:Rp It orbits the Sun in the inner asteroid belt at a distance of 1.8–2.6 AU once every 3 years and 4 months (1,220 days; semi-major axis of 2.23 AU). Its orbit has an eccentricity of 0.17 and an inclination of 5° with respect to the ecliptic.[6]
The body's observation arc begins with its identification as Template:Mp at Uccle Observatory in November 1939, almost 30 years prior to its official discovery observation at Nauchnyj.[1]
Physical characteristics
BAM has been characterized as a stony S-type asteroid by Pan-STARRS photometric survey.[7]
Rotation period
In October 2016, a rotational lightcurve of BAM was obtained from photometric observations by amateur astronomer Matthieu Conjat. Lightcurve analysis gave a well-defined rotation period of 10.774 hours with a brightness amplitude of 0.15 magnitude (U=3Script error: No such module "Check for unknown parameters".).[8]
Diameter and albedo
According to the survey carried out by the Japanese Akari satellite, BAM measures 8.14 kilometers in diameter and its surface has an albedo of 0.170.[9] The Collaborative Asteroid Lightcurve Link assumes a standard albedo of 0.24 – derived from 8 Flora, the parent body of the Flora family – and calculates a diameter of 7.14 kilometers based on an absolute magnitude of 12.9.[3]
Naming
This minor planet was named after those who constructed the Baikal–Amur Mainline (BAM; БАМ) through eastern Russia from 1974 to 1986. The rail line opened in 1989, and runs between Ust-Kut (near Lake Baikal and Komsomolsk-on-Amur.[2][10] The official Template:MoMP was published by the Minor Planet Center on 1 September 1978 (M.P.C. 4482Script error: No such module "Check for unknown parameters".).[11]
References
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- ↑ Script error: No such module "Citation/CS1". (online, AcuA catalog p. 153)
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