(118379) 1999 HC12
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Discovery
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| Discovered by | Kitt Peak National Observatory |
| Discovery date | April 18, 1999 |
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Designations
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| MPC designation | (118379) 1999 HC12 |
| Alternate name(s) | none |
| Minor planet category |
Cubewano (MPC)[1] Extended (DES)[2] |
| Aphelion | 56.370 AU |
| Perihelion | 34.858 AU |
| Semi-major axis | 45.614 AU |
| Eccentricity | 0.236 |
| Mean anomaly | 51.8° |
| Inclination | 15.3° |
| Longitude of ascending node | 57.0° |
| Argument of perihelion | 96.8° |
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Physical characteristics
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| Dimensions | 133 |
| Albedo | 0.09 (assumed) |
| Absolute magnitude (H) | 7.6 |
(118379) 1999 HC12, also written as (118379) 1999 HC12, is a trans-Neptunian object. It was discovered on April 18, 1999 at Kitt Peak National Observatory.
[edit] References
- ^ [www.minorplanetcenter.org/mpec/K09/K09R09.html "MPEC 2009-R09 :Distant Minor Planets (2009 SEPT. 16.0 TT)"]. IAU Minor Planet Center. 2009-09-04. www.minorplanetcenter.org/mpec/K09/K09R09.html. Retrieved 2011-01-08.
- ^ Marc W. Buie (2005-04-14 using 15 observations). "Orbit Fit and Astrometric record for 118379". SwRI (Space Science Department). http://www.boulder.swri.edu/~buie/kbo/astrom/118379.html. Retrieved 2009-10-04.
- http://www.johnstonsarchive.net/astro/tnoslist.html
- http://www.minorplanetcenter.org/iau/lists/TNOs.html
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