ENSIKLOPEDIA Cari Tekan Enter untuk memulai pencarian cepat. Kembali ke Ensiklopedia Arsip Wikipedia Indonesia 2997 Cabrera 2997 CabreraMain-belt asteroid 2997 CabreraDiscovery[1]Discovered byFelix Aguilar Obs.Discovery siteEl Leoncito ComplexDiscovery date17 June 1974DesignationsMPC designation(2997) CabreraNamed afterAscención L. Cabrera(Argentine astronomer)[2]Alternative designations1974 MJ · 1950 TA41977 EZ7Minor planet categorymain-beltOrbital characteristics[1]Epoch 4 September 2017 (JD 2458000.5)Uncertainty parameter 0Observation arc66.61 yr (24,331 days)Aphelion3.0609 AUPerihelion2.0489 AUSemi-major axis2.5549 AUEccentricity0.1980Orbital period (sidereal)4.08 yr (1,492 days)Mean anomaly162.31°Mean motion0° 14m 29.04s / dayInclination7.1902°Longitude of ascending node355.12°Argument of perihelion349.90°Physical characteristicsDimensions8.326±0.140[3]Geometric albedo0.232±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 2 3 4 "JPL Small-Body Database Browser: 2997 Cabrera (1974 MJ)" (2017-03-26 last obs.). Jet Propulsion Laboratory. Retrieved 15 June 2017. 1 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. 1 2 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 vteMinor planets navigator 2996 Bowman 2997 Cabrera 2998 Berendeya vteSmall Solar System bodiesMinor planets Designation Groups List Moon Meanings of names Asteroid Active Asteroid belt Family Jupiter trojan Near-Earth Amors Apollos Atens Atiras Spectral types Distant minor planet Centaur Neptune trojan Damocloid Trans-Neptunian object Detached Kuiper belt Oort cloud Scattered disc Comets Extinct Great Halley-type Hyperbolic/Parabolic Long-period Lost Near-parabolic Periodic Sungrazing Other Cosmic dust Meteoroids Space debris Authority control databases JPL SBDBMPC
