if you count it with heat it would be a star
the sun
Sun and other stars, like Sirius are able to produce light of their own.
Cities can be seen from space.
Moon
planets, moon,etc do not emit light on their own.
the sun
Stars are the only objects in space that give off their own light.Other objects are visible only if a star shines on them.
Sun and other stars, like Sirius are able to produce light of their own.
Provides light
Because light can't directly reach the objects, or reflect well off the inside walls of the box. So not enough light bounces off the walls, then bounces off the objects, and then goes to your eyes.
No. Most objects you see need to be shined on by a source of light, otherwise you don't see them.
Cities can be seen from space.
Moon
Luminous objects usually give out the light that they make on their own. An example of a luminous object is a star or an LED lamp.
planets, moon,etc do not emit light on their own.
Luminous
Non-luminous. Objects which produce light of their own or give out or emit their own light are called luminous objects. Objects which do not produce light of their own, on the other hand, are called non-luminous objects. Luminous objects are objects like stars, sun and other celestial bodies which give out their own light. Objects surrounding us are not such light emitting objects. Therefore, we are surrounded by non-luminous objects.