Group D Luminous Objects
luminous objects are the things and planets that give their own light in space. Example the sun gives out its own light because it is a star on fire , the moon is a luminous object because when you look up at the sky at night in earth you see that the moon always glows in the night sky like the stars which also are lumionous objects.

page revision: 0, last edited: 14 Jun 2012 08:56