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Objects that emit light are usually referred to as incandescent.
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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.
starsmeteorsfirefliesflashlightsincandescent filamentstoaster coilsLEDsparty light sticksfluorescent tubesfluorescent mineralsstatic electrical discharges
Astronomy is the study of celestial objectsRadio astronomy is the study of celestial objects that emit radio waves.
Objects that emit light are usually referred to as incandescent.
planets, moon,etc do not emit light on their own.
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sun, stars, galaxies, nebulae, and meteors
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.
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.
ii really dont know DD=
Yes because they emit or give off light
== Fluorescence== Fluorescent objects emit visible light when stimulated by ultraviolet light.