2011 KW48
Large Kuiper belt object observed by New Horizons / From Wikipedia, the free encyclopedia
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2011 KW48, temporarily designated VNH0004, is a trans-Neptunian object from the inner classical part of the Kuiper belt, located in the outermost region of the Solar System. It measures approximately 77 kilometers (48 mi) in diameter.
Quick Facts Discovery, Discovered by ...
Discovery[1] | |
---|---|
Discovered by | New Horizons KBO Search (266) |
Discovery site | Subaru Telescope |
Discovery date | 29 May 2011 (discovery: first observed only) |
Designations | |
2011 KW48 | |
VNH0004 | |
TNO[1] · inner classic[2] distant[3] | |
Orbital characteristics[1] | |
Epoch 8 June 2011 (JD 2455720.5) | |
Uncertainty parameter n.a.[1][3] | |
Observation arc | 34 days |
Aphelion | 42.676 AU |
Perihelion | 32.368 AU |
37.522 AU | |
Eccentricity | 0.1374 |
229.84 yr (83,950 days) | |
347.91° | |
0° 0m 15.48s / day | |
Inclination | 3.6328° |
246.15° | |
46.931° | |
Physical characteristics | |
Mean diameter | 77 km[2] |
0.09 (estimate)[2] | |
8.8[1] | |
Close
The object was first observed on 29 May 2011, during the New Horizons KBO Search (266) conducted by astronomers using the Subaru Telescope at the Mauna Kea Observatory on Hawaii, United States.[3] It was later observed by the New Horizons space probe from afar in January 2015.[4][5]