937 Bethgea

937 Bethgea is a background asteroid from the inner region of the asteroid belt. It was discovered on 12 September 1920 by German astronomer Karl Wilhelm Reinmuth, from Heidelberg.

937 Bethgea
Discovery
Discovered byK. Reinmuth
Discovery siteHeidelberg
Discovery date12 September 1920
Designations
(937) Bethgea
Pronunciation/ˈbɛθɡiə/
1920 HO; A916 GA; 1946 GC; 1959 EQ
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc99.97 yr (36513 days)
Aphelion2.7160 AU (406.31 Gm)
Perihelion1.7473 AU (261.39 Gm)
2.2317 AU (333.86 Gm)
Eccentricity0.21703
3.33 yr (1217.7 d)
296.008°
0° 17m 44.304s / day
Inclination3.6963°
243.574°
72.509°
Physical characteristics
8.356 h,[2] 7.5390 h (0.31413 d)[1]
11.83

    Photometric observations of this asteroid made at the Torino Observatory in Italy during 1990–1991 were used to determine a synodic rotation period of 8.356 ± 0.006 hours.[2][3]

    References
    1. Yeomans, Donald K., "937 Bethgea", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 2 May 2016.
    2. di Martino, M.; et al. (February 1994), "Lightcurves and rotational periods of nine main belt asteroids", Icarus, vol. 107, no. 2, pp. 269–275, Bibcode:1994Icar..107..269D, doi:10.1006/icar.1994.1022.
    3. "Asteroid Lightcurve Parameters". Archived from the original on 14 June 2006. Retrieved 3 November 2008.


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