Wikipedia
2997 Cabrera
2997 Cabrera, provisional designation 1974 MJ, is an asteroid from the central regions of the asteroid belt, approximately 8 kilometers in diameter.
| 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 | |
| main-belt | |
| Orbital characteristics [1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 66.61 yr (24,331 days) |
| Aphelion | 3.0609 AU |
| Perihelion | 2.0489 AU |
| 2.5549 AU | |
| Eccentricity | 0.1980 |
| 4.08 yr (1,492 days) | |
| 162.31° | |
| 0° 14m 29.04s / day | |
| Inclination | 7.1902° |
| 355.12° | |
| 349.90° | |
| Physical characteristics | |
| Dimensions | 8.326±0.140[3] |
| 0.232±0.031[3] | |
| 12.7[1] | |
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 edit
- ^ a b c d "JPL Small-Body Database Browser: 2997 Cabrera (1974 MJ)" (2017-03-26 last obs.). Jet Propulsion Laboratory. Retrieved 15 June 2017.
- ^ a b 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.
- ^ a b 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. arXiv:1109.4096. Bibcode:2011ApJ...741...68M. doi:10.1088/0004-637X/741/2/68. Retrieved 15 June 2017.
External links edit
- Dictionary of Minor Planet Names, Google books
- 2997 Cabrera at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
- 2997 Cabrera at the JPL Small-Body Database