2285 Ron Helin
| Discovery [1] | |
|---|---|
| Discovered by | S. J. Bus |
| Discovery site | Palomar Obs. |
| Discovery date | 27 August 1976 |
| Designations | |
| MPC designation | 2285 Ron Helin |
Named after |
Ronald P. Helin husband of astronomer Eleanor F. Helin[2] |
| 1976 QB | |
| main-belt | |
| Orbital characteristics [1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 38.87 yr (14199 days) |
| Aphelion | 2.6817 AU (401.18 Gm) |
| Perihelion | 1.7581 AU (263.01 Gm) |
| 2.2199 AU (332.09 Gm) | |
| Eccentricity | 0.20802 |
| 3.31 yr (1208.1 d) | |
| 320.19° | |
| 0° 17m 52.764s / day | |
| Inclination | 5.3338° |
| 157.85° | |
| 182.89° | |
| Earth MOID | 0.747651 AU (111.8470 Gm) |
| Jupiter MOID | 2.70493 AU (404.652 Gm) |
| Jupiter Tisserand parameter | 3.616 |
| Physical characteristics | |
| 12 h (0.50 d) | |
| 14.0 | |
|
| |
2285 Ron Helin, provisional designation 1976 QB, is an asteroid from the asteroid belt, discovered on August 27, 1976 by American astronomer Schelte Bus at Palomar Observatory in San Diego County, California. The fairly eccentric asteroid orbits the Sun at a distance of 1.8–2.7 AU once every 3 years and 4 months (1,208 days). Its rotation period is 12 hours.[1]
The asteroid was named in honor of Ronald Helin, husband of American female astronomer Eleanor Helin (1932–2009), in appreciation of his support of the Palomar Planet-Crossing Asteroid Survey (PCAS).[2]
References
- 1 2 3 "JPL Small-Body Database Browser: 2285 Ron Helin (1976 QB)" (2015-07-12 last obs.). Jet Propulsion Laboratory. Retrieved 15 April 2016.
- 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (2285) Ron Helin. Springer Berlin Heidelberg. p. 186. ISBN 978-3-540-29925-7. Retrieved 23 August 2016.
- Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html
External links
- Dictionary of Minor Planet Names, Google books
- 2285 Ron Helin at the JPL Small-Body Database
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