radiant

A point source from which radiation is emitted.

The apparent origin, in the night sky, of a meteor shower.

A straight line proceeding from a given point, or fixed pole, about which it is conceived to revolve.

Radiating light and/or heat.

"the radiant sun"

Emitted as radiation.

Beaming with vivacity and happiness.

"a radiant face"

Emitting or proceeding as if from a center.