Samiksha Jaiswal (Editor)

(118378) 1999 HT11

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Discovery date  17 April 1999
Minor planet category  TNO 4:7 resonance
Aphelion  49.013 AU (7.3322 Tm)
Orbital period  293 years
Absolute magnitude  7.6
MPC designation  (118378) 1999 HT11
Observation arc  5881 days (16.10 yr)
Perihelion  38.894 AU (5.8185 Tm)
Discovered  17 April 1999
Discovered by  Kitt Peak National Observatory
Discovery site  Kitt Peak National Observatory
Minor planet categories  Trans-Neptunian object, Resonant trans-Neptunian object
Similar  (15788) 1993 SB, S/2000 (1998 WW31) 1, 53311 Deucalion

(118378) 1999 HT11, also written as (118378) 1999 HT11, is a trans-Neptunian object (TNO) in a 4:7 orbital resonance with Neptune. It has a perihelion (closest approach to the Sun) at 38.858 AU and an aphelion (farthest approach from the Sun) at 49.231 AU. It is about 146 km in diameter. It was discovered on April 17, 1999, at Kitt Peak National Observatory, Arizona.

References

(118378) 1999 HT11 Wikipedia


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