Supriya Ghosh (Editor)

(471288) 2011 GM27

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Discovery site  La Silla Obs. (809)
MPC designation  2011 GM27
Observation arc  3308 days (9.06 yr)
Discovery date  2 April 2011
Minor planet category  TNO ยท cubewano
Aphelion  45.277 AU (6.7733 Tm)

(471288) 2011 GM27 is a trans-Neptunian object (TNO) in the Kuiper belt. It orbits slightly outside a 3:5 resonance with Neptune, taking 16 years (5.5% of its orbit) longer to orbit the Sun than a body in 3:5 resonance. It was discovered on 2 April 2011 at ESO's La Silla Observatory in Chile. With an absolute magnitude of 5.2, it is probably a dwarf planet, as its diameter has been roughly estimated to be about 450 kilometers based on an assumed geometric albedo of 0.06. It has a Tisserand's parameter relative to Jupiter of 5.771. Precovery observations exist dating back to 2006 in SDSS data.

References

(471288) 2011 GM27 Wikipedia