2997 Cabrera, provisional designation 1974 MJ, is an asteroid from the central regions of the asteroid belt, approximately 8 kilometers in diameter.
Discovery [1] | |
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Discovered by | Felix Aguilar Obs. |
Discovery site | El Leoncito Complex |
Discovery date | 17 June 1974 |
Designations | |
MPC designation | (2997) Cabrera |
Named after | Ascención L. Cabrera (Argentine astronomer)[2] |
Alternative designations | 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) |
Aphelion | 3.0609 AU |
Perihelion | 2.0489 AU |
Semi-major axis | 2.5549 AU |
Eccentricity | 0.1980 |
Orbital period (sidereal) | 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° |
Argument of perihelion | 349.90° |
Physical characteristics | |
Dimensions | 8.326±0.140[3] |
Geometric albedo | 0.232±0.031[3] |
Absolute magnitude (H) | 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]
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