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(48639) 1995 TL8
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(48639) 1995 TL8 is a binary trans-Neptunian object from the scattered disc in the outermost regions of the Solar System. It was discovered by Arianna Gleason in 1995 and measures approximately 176 kilometers in diameter. Its 80-kilometer minor-planet moon, provisionally designated S/2002 (48639) 1, was discovered on 9 November 2002.[5]
Quick Facts Discovery, Discovered by ...
![]() 1995 TL8 and its satellite (unresolved) imaged by the Hubble Space Telescope | |
Discovery[1][2] | |
---|---|
Discovered by | A. Gleason (Spacewatch) |
Discovery site | Kitt Peak National Obs. |
Discovery date | 15 October 1995 |
Designations | |
(48639) 1995 TL8 | |
1995 TL8 | |
TNO[1] · Other TNO[3] detached[4] · distant[2] | |
Orbital characteristics[1] | |
Epoch 17 December 2020 (JD 2459200.5) | |
Uncertainty parameter 2 | |
Observation arc | 25.26 yr (9,225 days) |
Aphelion | 65.218 AU |
Perihelion | 39.937 AU |
52.578 AU | |
Eccentricity | 0.2404 |
381.25 yr (139,251 days) | |
46.972° | |
0° 0m 9.36s / day | |
Inclination | 0.2499° |
260.007° | |
84.397° | |
Known satellites | 1 (D: 80 km)[5] |
Physical characteristics | |
Dimensions | 176 km[5] 420.27 km (calculated)[6] 495 km (estimated)[7] |
0.07 (estimated)[7] 0.10 (assumed)[6] 0.369[5] | |
RR[8] · C (assumed)[6] | |
4.667±0.091 (R)[9] · 4.8[1][6] · 5.1[7] · 5.290±0.060[lower-alpha 1] | |
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