self-luminous

Generates own light

Self-luminous describes something that produces its own light rather than reflecting light from another source.

Stars are self-luminous; planets are not.

The term appears in astronomy and physics but also in figurative contexts: Her self-luminous personality needed no spotlight.

quality

radiant

Emitting light or joy

brilliant · effulgent · lambent · lustrous · aglow · ablaze · gleaming · resplendent · bright · vivid

bioluminescent

firefly

Bioluminescent nocturnal beetle

lanternfish · vampire squid · dragonfish · foxfire · bioluminescence · chemiluminescence · deep-sea · plankton · comb jelly · millipede

stellar

star

Luminous astronomical object

nebula · white dwarf · red giant · blue supergiant · pulsar · magnetar · protostar · main sequence · photosphere · fusion

phosphorescent

phosphorescence

Heatless delayed light emission

luminol · radium dial · blacklight · photoluminescence

Opposites
light generation

self-luminousnon-luminous

Not producing light

dark · lightless · unlit · reflective · aphotic

visibility mechanism

self-luminousreflective

Casting back light

illuminated · passive · light-dependent · mirrorlike · backlit

Family

self, luminous, selves, selfhood, selfless, selflessness, selfish, selfishness, lumen

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