Luminous Object and Non-Luminous Object
An object which emits light of its own , then the object is known as Luminous object.
For Example: Sun emits its own light.
Other examples are Stars, Torch, Candle, Fire, Sun
An object which do not emit their own light , they reflect light of other objects, then the object is known as Non-Luminous Objects.
Example: Moon - Moon reflects the light from the sun.
Other examples are pen, table, chair etc.