planets, moon,etc do not emit light on their own.
sun, stars, galaxies, nebulae, and meteors
make their own light. what would make light then? the sun gives off light and it's a star.
Yes because they emit or give off light
No. Stars emit their own light.
the light from the moon is a reflection of the light from the sun
Objects that emit light are usually referred to as incandescent.
Objects that do not emit or give out light or energy of their own are referred to as non-luminous objects.
wood
the objects which emit light of their own........example:sun,burning candle etc....,
sun, stars, galaxies, nebulae, and meteors
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.
By definition, something which does not emit light cannotbe seen. However, it can be observed, in that its effects such as through gravity and electromagnetism can be detected.
Yes, quasars are the most luminous objects in the universe.
make their own light. what would make light then? the sun gives off light and it's a star.
Those objects would be too cold to emit significant amounts of visible light.
They reflect light from the sun back to observers on earth, unlike the stars, which emit their own light. Everything in our solar system is `lit up` by our sun, which emits light. The planets and moons (along with comets and other objects) don't emit light themselves, but are illuminated by the sun.
Radio Telescope observe light of a different wavelength then optical light. Radio waves have a longer wavelength then visible light. Some interstellar objects barley emit any light in the visible spectrum but emit a significant amount of radiation in the radio spectrum. Radio telescopes enable us to view objects which emit in the radio spectrum.