1. (n.) A celestial body that gives light, a person who inspires\.

2. (n.) One who illustrates any subject, or enlightens mankind; as, Newton was a distinguished luminary.

VIP actinic big big name big-timer candle catoptric celebrity chief constellation cynosure electric light bulb electronics king eminence figure fire first-rater flame folk hero galaxy genius glim great man heliographic heliological hero heroine honcho idol illuminant illuminator immortal important person incandescent body king lamp lantern lead leader leading light light light bulb light source lion luminal luminant luminaries man of mark master spirit match moon nabob name notability notable paramount person of note personage photic photoactinic photologic pleiad pop hero popular hero popular idol prima donna principal prodigy public figure social lion somebody source of light star stars sun superstar taper top dog topnotcher torch virtuoso wonder worthy