Starry; relating to stars; full of stars.
- Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874. (adjective) (adj.) (adjective)
Pertaining to stars; as, stellar rays; starry.
- The Winston Simplified Dictionary. By William Dodge Lewis, Edgar Arthur Singer. Published 1919. (adjective) (adj.) (adjective)
- A dictionary of scientific terms. By Henderson, I. F.; Henderson, W. D. Published 1920. (adjective) (adj.) (adjective)
Starry; relating to the stars.
- The Clarendon dictionary. By William Hand Browne, Samuel Stehman Haldeman. Published 1894. (adjective) (adj.) (adjective)
Pertaining to stars; astral; starry; full of stars; sot with stars.
- Nuttall's Standard dictionary of the English language. By Nuttall, P.Austin. Published 1914. (adjective) (adj.) (adjective)

Usage examples:

This marvelous star, viewed through a powerful telescope, breaks up into six suns, forming a most remarkable stellar group.
- Astronomy for Amateurs by Camille Flammarion
I suppose you've gone into the possibilities of stellar attraction."
- The Man Who Rocked the Earth by Arthur Train Robert Williams Wood
They occur, I was told, in one out of eight stellar systems, but they're completely different from what we've been discussing.
- Youth by Isaac Asimov