(48639) 1995 TL8

(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.

[5] 1995 TL8 was discovered on 15 October 1995, by American astronomer Arianna Gleason as part of UA's Spacewatch survey at Kitt Peak National Observatory, near Tucson, Arizona.

[10] A companion was discovered by Denise C. Stephens and Keith S. Noll, from observations with the Hubble Space Telescope taken on 9 November 2002, and announced on 5 October 2005.

Its orbit has not been determined, but it was at a separation of only about 420 kilometres (260 mi) to the primary at the time of discovery, with a possible orbital period of about half a day and an estimated diameter of 161 kilometres (100 mi).

Animation of two Hubble images of 1995 TL 8 's satellite in August 2001
A relative size and distance comparison of the 1995 TL 8 system with the Earth – Moon system. The scale of the Earth–Moon system has been reduced so Earth appears the same size as the 1995 TL 8 primary.