(315530) 2008 AP129
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(315530) 2008 AP129 (provisional designation 2008 AP129) is a trans-Neptunian object and possibly a cubewano from the outermost regions of the Solar System, approximately 480 kilometers in diameter. It was discovered on 11 January 2008, by American Michael E. Brown and Megan Schwamb at Palomar Observatory in California.[4]
Quick Facts Discovery, Discovered by ...
Discovery[1] | |
---|---|
Discovered by | M. E. Schwamb M. E. Brown |
Discovery site | Palomar Obs. |
Discovery date | 11 January 2008 |
Designations | |
(315530) 2008 AP129 | |
2008 AP129 | |
TNO[1] · cubewano(?)[2] Extended[3] · distant[4] | |
Orbital characteristics[1] | |
Epoch 2 February 2023 (JD 2460000.5) | |
Uncertainty parameter 2 | |
Observation arc | 33.46 yr (12,220 days) |
Earliest precovery date | 9 October 1989 |
Aphelion | 47.503 AU |
Perihelion | 35.837 AU |
41.670 AU | |
Eccentricity | 0.1400 |
268.99 yr (98,249 d) | |
57.045° | |
0° 0m 13.32s / day | |
Inclination | 27.458° |
14.757° | |
56.567° | |
Physical characteristics | |
Dimensions | 460.81 km (calculated)[5] 486 km[2] 494 km[6] |
9.04±0.02 h[7] | |
0.07 (assumed)[6] 0.09 (assumed)[2] 0.10 (assumed)[5] | |
C (assumed)[5] | |
4.95[1][5] · 5.1[6] | |
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