Stars, quasars, clusters, nebulae, galaxies, superclusters, the CMBR (Cosmic Microwave Background Radiation).
Objects that emit light are usually referred to as incandescent.
sun, stars, galaxies, nebulae, and meteors
planets, moon,etc do not emit light on their own.
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The Sun and red giants
Stars are bright shining objects in space which emit light and have a fixed place in space. Planets are celestial bodies with light but do not shine and which rotate around a specific star.
Stars, satellites, and something else
Sun and stars .
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.
Quasars are the most radiant objects in space. They contain a central black hole surrounded by a disk of gas and dust. They emit large amounts of radio waves but not much visible light.
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.