(12292) Dalton
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Asteroid (12292) Dalton |
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|---|---|
| Properties of the orbit ( animation ) | |
| Orbit type | Main outer belt asteroid |
| Asteroid family | Hygiea family |
| Major semi-axis | 3.1464 AU |
| eccentricity | 0.0961 |
| Perihelion - aphelion | 2.8439 AU - 3.4489 AU |
| Inclination of the orbit plane | 6.2037 ° |
| Length of the ascending node | 71.5316 ° |
| Argument of the periapsis | 117.6205 ° |
| Time of passage of the perihelion | 23rd July 2018 |
| Sidereal period | 5.58 a |
| Mean orbital velocity | 16.73 km / s |
| Physical Properties | |
| Absolute brightness | 13.4 mag |
| history | |
| Explorer | Eric Walter Elst |
| Date of discovery | June 6, 1991 |
| Another name | 1991 LK 2 , 1993 TG 38 |
| 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. | |
(12292) Dalton is an asteroid of the main outer belt , an asteroid field between Mars and Jupiter . The asteroid was discovered on June 6, 1991 by the Belgian astronomer Eric Walter Elst at the La Silla Observatory of the European Southern Observatory in Chile ( IAU code 809).
The asteroid belongs to the Hygiea family, a rather older group of asteroids, as is believed, the largest member of which is the asteroid (10) Hygiea . The ageless (not osculating ) orbital elements of (12292) Dalton are almost identical with those of five smaller (when one of the absolute brightness of 14.6, 15.8, 15.6, 16.6, and 17.1 compared to 13 , 4) Asteroids: (166765) 2002 UN 34 , (195708) 2002 PV 38 , (233624) 2007 TS 272 , (395245) 2010 NL 113 and (412240) 2013 HU 21 .
The rotation period of (12292) Dalton was published in 2015 by Adam Waszczak, Chan-Kao Chang, Eran Ofek et al. examined. However, the light curve was not sufficient for a determination.
The asteroid was named on March 6, 2004 after the English chemist John Dalton (1766-1844). As early as 1964, a lunar crater on the northwestern front of the moon was named after Jon Dalton: lunar crater Dalton .
Web links
- (12292) Dalton in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (12292) Dalton 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 by (12292) Dalton according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ↑ The family affiliation of (12292) Dalton in the AstDyS-2 database (English)
- ↑ The family status of the asteroids in the AstDyS-2 database (English, HTML; 51.4 MB)
- ↑ Lunar Crater Dalton in the Gazetteer of Planetary Nomenclature of the IAU (WGPSN) / USGS (English)