A firefly is considered luminous. Luminous means that the organism or object has the ability to produce its own light.
A luminous body 'glows' on it's own (a firefly) while an illuminated body is seen with light. (a flash light at night on a book).
Only if it is lit.
Is screen of television an luminous or illuminated
Luminous.
Firefly
One is luminous and the other is illuminated. If you know what these words mean, that should be enough.
Firefly
The moon is illuminated by the sun. It is not luminous, since it emits no light of its own, only reflected light.
A luminous source produces its own light, like the sun or a light bulb. An illuminated source does not produce light but reflects light from a luminous source, such as the moon reflecting sunlight.
A flashlight is considered illuminated because it emits light due to an internal power source (battery). Luminous objects generate their own light without requiring an external source.
Street lights are illuminated. They emit light to illuminate the surrounding area.
An illuminated object reflects light that came from somewhere else. A luminous object emitts its own light.