Astronomy:2980 Cameron
From HandWiki
| Discovery [1] | |
|---|---|
| Discovered by | S. J. Bus |
| Discovery site | Siding Spring Obs. |
| Discovery date | 2 March 1981 |
| Designations | |
| (2980) Cameron | |
| Named after | Alastair Cameron [2] |
| 1981 EU17 · 1977 EL3 1979 SQ7 | |
| Minor planet category | main-belt |
| Orbital characteristics [1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 39.87 yr (14,564 days) |
| |{{{apsis}}}|helion}} | 3.0324 AU |
| |{{{apsis}}}|helion}} | 2.1023 AU |
| 2.5673 AU | |
| Eccentricity | 0.1811 |
| Orbital period | 4.11 yr (1,503 days) |
| Mean anomaly | 36.213° |
| Mean motion | 0° 14m 22.56s / day |
| Inclination | 7.2772° |
| Longitude of ascending node | 172.24° |
| 254.25° | |
| Physical characteristics | |
| Dimensions | 5.121±0.183[3] |
| Geometric albedo | 0.322±0.047[3] |
| Absolute magnitude (H) | 13.4[1] |
2980 Cameron, provisionally designated 1981 EU17, is a main-belt asteroid discovered by prolific American astronomer Schelte Bus at Siding Spring Observatory, Australia, on March 2, 1981. It orbits the Sun every 4.11 years at a distance of 2.1–3.0 AU.[1]
The asteroid was named after astrophysicist and cosmogonist Alastair G. W. Cameron (1925–2005), who was associate director for theoretical astrophysics at the Center for Astrophysics | Harvard & Smithsonian. He was an early advocate of the concepts of a turbulent accretion disk solar nebula, and of the origin of the Moon by a giant impact on the proto-Earth. He also studied the nucleosynthesis in stars and supernovae, and the cosmic abundances of nuclides.[2]
References
- ↑ 1.0 1.1 1.2 1.3 "JPL Small-Body Database Browser: 2980 Cameron (1981 EU17)". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2002980.
- ↑ 2.0 2.1 Schmadel, Lutz D. (2003). "(2980) Cameron". Dictionary of Minor Planet Names – (2980) Cameron. Springer Berlin Heidelberg. p. 245. doi:10.1007/978-3-540-29925-7_2981. ISBN 978-3-540-29925-7.
- ↑ 3.0 3.1 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. doi:10.1088/0004-637X/741/2/68. Bibcode: 2011ApJ...741...68M. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011ApJ...741...68M. Retrieved 15 June 2017.
External links
- Dictionary of Minor Planet Names, Google books
- 2980 Cameron at AstDyS-2, Asteroids—Dynamic Site
- 2980 Cameron at the JPL Small-Body Database
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