45737 Benita, provisional designation 2000 HB is a bright background asteroid from the outer regions of the asteroid belt, approximately 5 kilometers in diameter. It was discovered on 22 April 2000, by American amateur astronomer Bruce Segal at the Florida Atlantic University's Jupiter Observatory (837) in Boca Raton, Florida.[1][5]
Discovery [1] | |
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Discovered by | B. A. Segal |
Discovery site | Jupiter Obs. |
Discovery date | 22 April 2000 |
Designations | |
MPC designation | (45737) Benita |
Named after | Benita Segal [2] (discoverer's wife) |
Alternative designations | 2000 HB |
Minor planet category | main-belt · (outer) background [3] |
Orbital characteristics [1] | |
Epoch 4 September 2017 (JD 2458000.5) | |
Uncertainty parameter 0 | |
Observation arc | 19.41 yr (7,091 days) |
Aphelion | 3.3441 AU |
Perihelion | 3.0485 AU |
Semi-major axis | 3.1963 AU |
Eccentricity | 0.0462 |
Orbital period (sidereal) | 5.71 yr (2,087 days) |
Mean anomaly | 245.14° |
Mean motion | 0° 10m 21s / day |
Inclination | 10.197° |
Longitude of ascending node | 181.43° |
Argument of perihelion | 124.47° |
Physical characteristics | |
Dimensions | 5.121±1.701 km[4] |
Geometric albedo | 0.294±0.080[4] |
Absolute magnitude (H) | 13.6[1] |
Benita is a non-family asteroid from the main belt's background population.[3] It orbits the Sun in the outer asteroid belt at a distance of 3.0–3.3 AU once every 5 years and 9 months (2,087 days; semi-major axis of 3.20 AU). Its orbit has an eccentricity of 0.05 and an inclination of 10° with respect to the ecliptic.[1] The body's observation arc begins with a precovery taken at Lincoln Laboratory's ETS, New Mexico, on 30 October 1997.[5]
According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Benita measures 5.121 kilometers in diameter and its surface has an albedo of 0.294.[4]
As of 2017, no rotational lightcurve of Benita has been obtained from photometric observations. The body's rotation period, poles and shape remain unknown.[6]
The discoverer named this minor planet after his wife, Benita Segal (born 1964), a major supporter of the observatory.[2] The official naming citation was published by the Minor Planet Center on 20 November 2002 (M.P.C. 47170).[7]
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