2997 Cabrera

2997 Cabrera
Discovery
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)
Alternative designations	1974 MJ · 1950 TA4; 1977 EZ7
Minor planet category	main-belt
Orbital characteristics
	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
Geometric albedo	0.232±0.031
Absolute magnitude (H)	12.7

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

^ ^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

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
- Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters

[jpldata-1] "JPL Small-Body Database Browser: 2997 Cabrera (1974 MJ)" (2017-03-26 last obs.). Jet Propulsion Laboratory. Retrieved 15 June 2017.

[springer-2] 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.

[Masiero-2011-3] 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.

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