2937 Gibbs
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2937 Gibbs, provisional designation Template:Mp, is a stony Phocaea asteroid and Mars-crosser from the inner regions of the asteroid belt, approximately 6 kilometers in diameter. It was discovered on 14 June 1980, by American astronomer Edward Bowell at Lowell's Anderson Mesa Station near Flagstaff, Arizona.[1] The asteroid was named after American scientist Josiah Willard Gibbs.[2]
Orbit and classification
Gibbs is a Mars-crossing asteroid, as it crosses the orbit of Mars at 1.666 AU.[3][1] It is also an eccentric member of the Phocaea family,[4][5] a large asteroid family of stony asteroids in the inner main-belt.[6]Template:Rp Gibbs orbits the Sun at a distance of 1.6–3.0 AU once every 3 years and 6 months (1,290 days). Its orbit has an eccentricity of 0.30 and an inclination of 22° with respect to the ecliptic.[3]
The asteroid's observation arc begins with its official discovery observation at Anderson Mesa. No prior identifications were made and no precoveries taken.[1]
Physical characteristics
Gibbs is an assumed stony S-type asteroid, which agrees with the overall spectral type of the Phocaea family.[6]Template:Rp
Rotation period
In 2005, two rotational lightcurves of Gibbs were obtained from photometric observations by Italian amateur astronomers Federico Manzini and Roberto Crippa. Lightcurve analysis gave a rotation period of 3.06 and 3.06153 hours with a brightness variation of 0.31 and 0.39 magnitude, respectively (U=2/3-Script error: No such module "Check for unknown parameters".).[7] In December 2016, Robert Stephens obtained a well-defined lightcurve at his Trojan Station (U81Script error: No such module "Check for unknown parameters".) that gave a period of 3.189 hours and an amplitude of 0.26 magnitude (U=3Script error: No such module "Check for unknown parameters".).[8]Template:Efn
Diameter and albedo
According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Gibbs measures between 5.04 and 5.99 kilometers in diameter and its surface has an albedo between 0.283 and 0.30,[9][10] while the Collaborative Asteroid Lightcurve Link assumes an albedo of 0.23 – derived from 25 Phocaea, the Phocaea family's largest member and namesake – and calculates a diameter of 6.35 kilometers based on an absolute magnitude of 13.2.[4]
Naming
This minor planet was named in memory of American mathematician and physicist Josiah Willard Gibbs (1839–1903), who contributed to the studies of asteroids through his work on orbits.[2] The official naming citation was published by the Minor Planet Center on 17 February 1984 (M.P.C. 8544Script error: No such module "Check for unknown parameters".).[11] The lunar crater Gibbs was also named in his honor.[2]
Notes
References
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External links
- Asteroid Lightcurve Database (LCDB), query form (info Script error: No such module "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
- Template:AstDys
- Template:PAGENAMEBASE at the JPL Small-Body DatabaseTemplate:EditAtWikidata
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