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.
| Discovery | |
|---|---|
| Discovered by | K. Reinmuth |
| Discovery site | Heidelberg |
| Discovery date | 12 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 arc | 99.97 yr (36513 days) |
| Aphelion | 2.7160 AU (406.31 Gm) |
| Perihelion | 1.7473 AU (261.39 Gm) |
| 2.2317 AU (333.86 Gm) | |
| Eccentricity | 0.21703 |
| 3.33 yr (1217.7 d) | |
| 296.008° | |
| 0° 17m 44.304s / day | |
| Inclination | 3.6963° |
| 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
edit- ^ a b Yeomans, Donald K., "937 Bethgea", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 2 May 2016.
- ^ a b 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.
- ^ "Asteroid Lightcurve Parameters". Archived from the original on 14 June 2006. Retrieved 3 November 2008.
External links
edit- 937 Bethgea at AstDyS-2, Asteroids—Dynamic Site
- 937 Bethgea at the JPL Small-Body Database
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