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.
Objects that emit light are usually referred to as incandescent.
wood
starsmeteorsfirefliesflashlightsincandescent filamentstoaster coilsLEDsparty light sticksfluorescent tubesfluorescent mineralsstatic electrical discharges
the objects which emit light of their own........example:sun,burning candle etc....,
yes
Objects that emit light are usually referred to as incandescent.
planets, moon,etc do not emit light on their own.
wood
sun, stars, galaxies, nebulae, and meteors
Yes, quasars are the most luminous objects in the universe.
Objects that do not emit or give out light or energy of their own are referred to as non-luminous objects.
Those objects would be too cold to emit significant amounts of visible light.
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.
Yes because they emit or give off light
ii really dont know DD=
== Fluorescence== Fluorescent objects emit visible light when stimulated by ultraviolet light.
starsmeteorsfirefliesflashlightsincandescent filamentstoaster coilsLEDsparty light sticksfluorescent tubesfluorescent mineralsstatic electrical discharges