Discovery date August 21, 2006 Minor planet category TNO
Scattered disc Discovered 21 August 2006 Apparent magnitude 23.6 | MPC designation 2006 QH181 Observation arc 2634 days (7.21 yr) Absolute magnitude 4.3 Minor planet category Trans-Neptunian object | |
Aphelion 96.680 AU (14.4631 Tm) (Q) Perihelion 37.789 AU (5.6532 Tm) (q) Similar 2008 ST291, (119951) 2002 KX14, (229762) 2007 UK126 | ||
2006 QH181, also written as 2006 QH181, is a trans-Neptunian object (TNO). It is very likely a dwarf planet, and is part of the scattered disc. Its orbit is currently too poorly determined (U=6) to know whether there is a resonance with Neptune.
Contents
Distance
It came to perihelion around 1858. It is currently 82.9 AU from the Sun and moving at 2.8 kilometers per second (6,300 miles per hour) with respect to the Sun. The only dwarf planets and likely dwarf planets currently farther from the Sun are V774104, Eris (96.4 AU), 2007 OR10 (87.0 AU), Sedna (86.3 AU), and 2012 VP113 (83.1 AU). Because it is so far from the Sun, it only has an apparent magnitude of 23.6.
Orbit
It has been observed 15 times over only three oppositions and thus currently has a somewhat poorly known orbit. JPL ranks orbital quality from 0 to 9 (0 being best), and 2006 QH181 is currently listed with an orbit quality of 6.