The Collaborative International Dictionary of English v.0.48:

Starlit \Star"lit`\ (-l[i^]t`), a.
   Lighted by the stars; starlight.
   [1913 Webster]

WordNet (r) 3.0 (2006):

starlit
    adj 1: lighted only by stars; "the starlit darkness"

Moby Thesaurus II by Grady Ward, 1.0:

28 Moby Thesaurus words for "starlit":
   ablaze, aglow, alight, bathed with light, bespangled, brightened,
   candlelit, enlightened, firelit, gaslit, illuminated, in a blaze,
   irradiate, irradiated, lamplit, lanternlit, lighted, lightened,
   lit, lit up, luminous, moonlit, spangled, star-spangled,
   star-studded, studded, sunlit, tinseled