STAR
Thelonii
Description:	star
Affiliation:	Federation
Location:	Alpha or Beta Quadrant
Distance from Sol:	a few parsecs
Associated bodies:	Xanthii, Alfr

Thelonii is a star that, along with companion stars named Xanthii and Alfr, is part of the trinary Thelonii system in Federation space, located only a few parsecs from Earth, near the Alpha and Beta Quadrant border.

The Federation starship USS Thelonii was named for this location. (TOS reference: Star Fleet Technical Manual)