45737 Benita
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| Discovery[1] | |
|---|---|
| Discovered by | B. A. Segal |
| Discovery site | Jupiter Obs. |
| Discovery date | 22 April 2000 |
| Designations | |
| (45737) Benita | |
Named after | Benita Segal[2] (discoverer's wife) |
| 2000 HB | |
| 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 |
| 3.1963 AU | |
| Eccentricity | 0.0462 |
| 5.71 yr (2,087 days) | |
| 245.14° | |
| 0° 10m 21s / day | |
| Inclination | 10.197° |
| 181.43° | |
| 124.47° | |
| Physical characteristics | |
| Dimensions | 5.121±1.701 km[4] |
| 0.294±0.080[4] | |
| 13.6[1] | |
45737 Benita (provisional designation 2000 HB) is a bright asteroid located in the outer regions of the asteroid belt. It has an estimated diameter of approximately 5 kilometers. The asteroid was discovered on April 22, 2000, by Bruce Segal, an American amateur astronomer, at the Florida Atlantic University's Jupiter Observatory (837) in Boca Raton, Florida.[1][5]
Benita is a non-family asteroid that belongs to the background population of the main belt.[3] It orbits the Sun in the outer region of the asteroid belt, at a distance of 3.0–3.3 AU. It completes one orbit around the Sun every 5 years and 9 months (2,087 days) with a semi-major axis of approximately 3.20 AU. The orbit of Benita is slightly eccentric, with an eccentricity of 0.05, and it is inclined at an angle of 10° with respect to the ecliptic plane.[1] The body's observation arc begins with a precovery taken at Lincoln Laboratory's ETS, New Mexico, on 30 October 1997.[5]
Physical characteristics
Diameter and albedo
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]
Rotation period
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]
