Question

A clestial body which is self-luminous and radiates heat and light into the space.

Answer 1

I think the answer is sun

Answer 2

Question

A celestial body which is self-luminous and radiates heat and light into the space.

Answer :

Sun is the celestial body which is self-luminous and radiates heat and light into the space.

Luminous body : body which radiates its own heat and light.