(57424) Caelumnoctu
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Asteroid (57424) Caelumnoctu |
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| Position of the asteroid on December 7, 2013 in a graph | |
| Properties of the orbit ( animation ) | |
| Orbit type | Main outer belt asteroid |
| Asteroid family | Eos family |
| Major semi-axis | 3.0354 AU |
| eccentricity | 0.0947 |
| Perihelion - aphelion | 2.7481 AU - 3.3227 AU |
| Inclination of the orbit plane | 9.6717 ° |
| Length of the ascending node | 353.3218 ° |
| Argument of the periapsis | 46.2530 ° |
| Time of passage of the perihelion | 17th January 2018 |
| Sidereal period | 5.29 a |
| Physical Properties | |
| Absolute brightness | 13.7 mag |
| history | |
| Explorer | LINEAR |
| Date of discovery | September 16, 2001 |
| Another name | 2001 SP 22 , 1982 BV 4 |
| Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items. | |
(57424) Caelumnoctu is a major outer belt asteroid discovered on September 16, 2001 at the Lincoln Laboratory Experimental Test System ( IAU code 704) in Socorro , New Mexico as part of the Lincoln Near Earth Asteroid Research (LINEAR) project. The asteroid had been sighted before, for example on January 26, 1982 under the provisional designation 1982 BV 4 at the Japanese Kiso Observatory .
The asteroid belongs to the Eos family , a group of asteroids which typically have large semiaxes from 2.95 to 3.1 AU , bounded inward by the Kirkwood gap of the 7: 3 resonance with Jupiter , and orbital inclinations between 8 ° and 12 °. The group is named after the asteroid (221) Eos . The family is believed to have emerged from a collision more than a billion years ago. The timeless (non- osculating ) orbital elements of (57424) Caelumnoctu are almost identical to those of three smaller (assuming the absolute magnitude of 15.1, 15.5 and 16.2 compared to 13.7) asteroids: (151103) 2001 VV 132 , (232652) 2003 WE 17 and (349005) 2006 UT 270 .
(57424) Caelumnoctu was named on April 2, 2007 at the suggestion of David A. Rothery , a professor of planetary geosciences, in honor of the BBC television series " The Sky at Night " for the 50th anniversary of the moderation by Patrick Moore . The identification number 57424 of the asteroid contains the date of the first broadcast of the program: April 24, 1957. " Caelum noctu " is the Latin translation of "The Sky at Night".
Web links
- (57424) Caelumnoctu in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (57424) Caelumnoctu in the Small-Body Database of the Jet Propulsion Laboratory of NASA at the California Institute of Technology (Caltech) in Pasadena , California (English)
- Discovery Circumstances of (57424) Caelumnoctu according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ↑ Sightings of (57424) Caelumnoctu on minorplanetcenter.net (English)
- ↑ David Vokrouhlický , Miroslav Brož , Alessandro Morbidelli , William Bottke , David Nesvorný , Daniel Lazzaro, Andy Rivkin: Yarkovsky footprints in the Eos family . (English, PDF ; 26 MB)
- ↑ The family status of the asteroids in the AstDyS-2 database (English, HTML; 51.4 MB)
- ^ David A. Rothery: Planets. A very short introduction . Oxford University Press, Oxford 2010, ISBN 978-0-19-957350-9 . Page 109 (English)
- ↑ As early as 1982 an asteroid was named after Patrick Moore: (2602) Moore .