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(278361) 2007 JJ43

is a large trans-Neptunian object (TNO) orbiting the Sun near the outer edge of the Kuiper belt. Its discovery images were taken in 2007, and its absolute magnitude of 4.5 is one of the twenty brightest exhibited by unnamed TNOs. Assuming it has a typical albedo, this would make it roughly the same size as Ixion (about 530–620 km diameter). In a paper in the Astrophysical Journal Letters András Pál and colleagues estimate a diameter for of .

Observations by Mike Brown in 2012, using the W. M. Keck Observatory, suggest that does not have a significantly sized companion.

, it is about 40.5 AU from the Sun.

See also

References

External links