, provisional designation , is a centaur and damocloid orbiting the Sun with a very high inclination of almost 80°. It was discovered on 18 December 2004 by the Siding Spring Survey at the Siding Spring Observatory in Australia. The critical and unusual object measures approximately in diameter.
Orbit and classification
It orbits the Sun at a distance of 3.6–12.8 AU once every 23 years and 4 months (8,520 days; semi-major axis of 8.16 AU). Its orbit has an eccentricity of 0.57 and an inclination of 79° with respect to the ecliptic. The body's observation arc begins with its official discovery observation at the Siding Spring Observatory in December 2004.
Physical characteristics
Johnston's Archive assumes a standard albedo of 0.09 and calculates a diameter of 12 kilometers based on an absolute magnitude of 12.9.
References
External links
MPEC 2007-A22 : CRITICAL-LIST MINOR PLANETS (2007 JAN. 20.0 TT), Minor Planet Center (144908) 2004 YH32, Small Bodies Data Ferret