45737 Benita

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]

45737 Benita
Discovery [1]
Discovered byB. A. Segal
Discovery siteJupiter Obs.
Discovery date22 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 arc19.41 yr (7,091 days)
Aphelion3.3441 AU
Perihelion3.0485 AU
3.1963 AU
Eccentricity0.0462
5.71 yr (2,087 days)
245.14°
0° 10m 21s / day
Inclination10.197°
181.43°
124.47°
Physical characteristics
Dimensions5.121±1.701 km[4]
0.294±0.080[4]
13.6[1]

    Orbit and classification

    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]

    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]

    Naming

    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]

    References
    1. "JPL Small-Body Database Browser: 45737 Benita (2000 HB)" (2017-03-30 last obs.). Jet Propulsion Laboratory. Retrieved 30 November 2017.
    2. Schmadel, Lutz D. (2007). "(45737) Benita". Dictionary of Minor Planet Names – (45737) Benita. Springer Berlin Heidelberg. p. 895. doi:10.1007/978-3-540-29925-7_10039. ISBN 978-3-540-00238-3.
    3. "Asteroid 45737 Benita – Proper Elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 29 October 2019.
    4. Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Dailey, J.; et al. (November 2011). "Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters". The Astrophysical Journal. 741 (2): 20. arXiv:1109.4096. Bibcode:2011ApJ...741...68M. doi:10.1088/0004-637X/741/2/68. Retrieved 30 November 2017.
    5. "45737 Benita (2000 HB)". Minor Planet Center. Retrieved 30 November 2017.
    6. "LCDB Data for (45737) Benita". Asteroid Lightcurve Database (LCDB). Retrieved 30 November 2017.
    7. "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 30 November 2017.

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