Astronomy:2997 Cabrera
From HandWiki
| Discovery [1] | |
|---|---|
| Discovered by | Felix Aguilar Obs. |
| Discovery site | El Leoncito Complex |
| Discovery date | 17 June 1974 |
| Designations | |
| (2997) Cabrera | |
| Named after | Ascención L. Cabrera (Argentine astronomer)[2] |
| 1974 MJ · 1950 TA4 1977 EZ7 | |
| Minor planet category | main-belt |
| Orbital characteristics [1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 66.61 yr (24,331 days) |
| |{{{apsis}}}|helion}} | 3.0609 AU |
| |{{{apsis}}}|helion}} | 2.0489 AU |
| 2.5549 AU | |
| Eccentricity | 0.1980 |
| Orbital period | 4.08 yr (1,492 days) |
| Mean anomaly | 162.31° |
| Mean motion | 0° 14m 29.04s / day |
| Inclination | 7.1902° |
| Longitude of ascending node | 355.12° |
| 349.90° | |
| Physical characteristics | |
| Dimensions | 8.326±0.140[3] |
| Geometric albedo | 0.232±0.031[3] |
| Absolute magnitude (H) | 12.7[1] |
2997 Cabrera, provisional designation 1974 MJ, is an asteroid from the central regions of the asteroid belt, approximately 8 kilometers in diameter.
It was discovered by the Felix Aguilar Observatory at Leoncito Astronomical Complex, Argentina, on 17 June 1974. It orbits the Sun in the central main-belt at a distance of 2.0–3.1 AU once every 4 years and 1 month (1,492 days). Its orbit has an eccentricity of 0.20 and an inclination of 7° with respect to the ecliptic.[1]
It is named after Argentine astronomer Ascención Cabrera (1917–2003), long on the staff of the La Plata Observatory and collaborator at the Argentine National Observatory.[2]
References
- ↑ 1.0 1.1 1.2 1.3 "JPL Small-Body Database Browser: 2997 Cabrera (1974 MJ)". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2002997.
- ↑ 2.0 2.1 Schmadel, Lutz D. (2003). "(2997) Cabrera". Dictionary of Minor Planet Names – (2997) Cabrera. Springer Berlin Heidelberg. p. 246. doi:10.1007/978-3-540-29925-7_2998. 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
- 2997 Cabrera at AstDyS-2, Asteroids—Dynamic Site
- 2997 Cabrera at the JPL Small-Body Database
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