(523622) 2007 TG422
Trans-Neptunian object / From Wikipedia, the free encyclopedia
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(523622) 2007 TG422 (provisional designation 2007 TG422) is a trans-Neptunian object on a highly eccentric orbit in the scattered disc region at the edge of Solar System. Approximately 260 kilometers (160 miles) in diameter, it was discovered on 3 October 2007 by astronomers Andrew Becker, Andrew Puckett and Jeremy Kubica during the Sloan Digital Sky Survey at Apache Point Observatory in New Mexico, United States.[1] According to American astronomer Michael Brown, the bluish object is "possibly" a dwarf planet.[7] It belongs to a group of objects studied in 2014, which led to the proposition of the hypothetical Planet Nine.[10]
Quick Facts Discovery, Discovered by ...
Discovery[1][2] | |
---|---|
Discovered by | |
Discovery site | APO |
Discovery date | 3 October 2007 |
Designations | |
(523622) 2007 TG422 | |
2007 TG422 | |
Orbital characteristics[3] | |
Epoch 27 April 2019 (JD 2458600.5) | |
Uncertainty parameter 1 | |
Observation arc | 13.14 yr (4,800 d) |
Aphelion | 910.01 AU |
Perihelion | 35.532 AU |
472.77 AU | |
Eccentricity | 0.9248 |
10279.78 yr (3,754,688 d) | |
0.4774° | |
0° 0m 0.36s / day | |
Inclination | 18.620° |
112.84° | |
285.54° | |
Physical characteristics | |
Mean diameter | |
0.04 (est.)[7] | |
22.4[9] | |
6.5[1][3][7] | |
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