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A quasar (/ ˈ k w eɪ z ɑːr / KWAY-zar) is an extremely luminous active galactic nucleus (AGN). It is sometimes known as a quasi-stellar object, abbreviated QSO. The emission from an AGN is powered by accretion onto a supermassive black hole with a mass ranging from millions to tens of billions of solar masses, surrounded by a gaseous ...
Artist's conception of the oldest known quasar as of 2021, QSO J0313–1806 existing only ~670 million years after the Big Bang despite its large size. In 1964 a quasar became the most distant object in the universe for the first time.
The energy emitted by a quasar is gravitational energy, created from mass falling onto the accretion disc around the black hole. Quasars are extremely luminous. They were first identified as being high redshift sources of electromagnetic radiation , including radio waves and visible light .
3C 273 is a quasar located at the center of a giant elliptical galaxy in the constellation of Virgo. It was the first quasar ever to be identified and is the visually brightest quasar in the sky as seen from Earth, with an apparent visual magnitude of 12.9. [2] The derived distance to this object is 749 megaparsecs (2.4 billion light-years).
Explore the Marvel Database for information on Quasar, a cosmic superhero who wields Quantum Bands with energy manipulation abilities.
The closest, brightest quasar — called 3C 273 — is even visible to amateur astronomers with at least an 8-inch telescope, or astro-imagers, as it shines at magnitude 12.9 in the constellation ...
Among its quasar observations, in 2019 Hubble found the brightest quasar known in the early universe by using a combination of its sharp vision and a natural gravitational lens in space to see the distant object.