Samiksha Jaiswal (Editor)

(470308) 2007 JH43

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Discovery site  Palomar Obs.
MPC designation  2007 JH43
Discovery date  10 May 2007
Observation arc  31.34 yr (11,446 days)
(470308) 2007 JH43
Discovered by  Palomar Obs. Unaccredited: M. E. Schwamb M. E. Brown D. L. Rabinowitz
Minor planet category  TNO · Plutino SDO (DES)

(470308) 2007 JH43, provisional designation 2007 JH43, is a trans-Neptunian object in the outer regions of the Solar System, approximately 500 kilometers in diameter. It was discovered on 10 May 2007, by the U.S. Palomar Observatory in California. The team of unaccredited astronomers at Palomar consisted of Megan E. Schwamb, Michael E. Brown and David L. Rabinowitz

The minor planet orbits the Sun at a distance of 38.6–40.6 AU once every 249 years and 1 month (90,983 days). Its orbit has an eccentricity of 0.02 and an inclination of 18° with respect to the ecliptic. The first precovery was taken at the Australian Siding Spring Observatory during the Digitized Sky Survey in 1984, extending the body's observation arc by 23 years prior to its discovery observation. It came to perihelion around 1888. Based on an absolute magnitude of 4.5 and assuming a generic albedo for trans-Neptunian objects of 0.09, it is about 500 kilometres (310 mi) in diameter, which makes it likely a dwarf planet.

Orbital classification

As of 2014, the Minor Planet Center listed 2007 JH43 as a plutino (a trans-Neptunian object in 2:3 mean-motion resonance with Neptune). However, the Deep Ecliptic Survey currently shows it as a scattered object, based on a 10-million-year integration of the orbit.

References

(470308) 2007 JH43 Wikipedia


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