Tags: Planet.

2008 ST291 also written as 2008 ST291 is a trans-Neptunian object with an absolute magnitude of 4.3 making it possibly a dwarf planet.

2008ST291-orbit.gif
apoapsis (km)
2.3804e+13
orbital period (μ)
3.19678e+10
periapsis (km)
6.37437e+12
absolute magnitude
4.3
apparent magnitude
22.2
discovery date
2008-09-24
discoverer
David L. Rabinowitz, Michael E. Brown
epoch
February 8 2011

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