Nearest Quasar |verified| Jun 2026

While often cited as the nearest "true" quasar, a note on terminology: Some very low-activity galactic nuclei (like the one in Andromeda) are not quasars. And an object called is sometimes mistakenly called "nearest" — but 3C 273 is about 2.4 billion light-years away. Mrk 231 is genuinely the closest object that displays the full, powerful quasar phenomenon.

The nearest quasar is a topic of significant interest in astrophysics, as quasars are among the brightest and most distant objects in the universe. A quasar (Quasi-Stellar Radio Source) is an incredibly luminous object thought to be a distant galaxy with a supermassive black hole at its center. This black hole is actively accreting material, which heats up and releases enormous amounts of energy across the electromagnetic spectrum, making quasars visible from vast distances. nearest quasar

The nearest known quasar to Earth is ULAS J1342+0928, which is about 1.34 billion light-years away. This quasar is significant not only for its proximity but also for the insights it provides into the early universe. The light we see from ULAS J1342+0928 today has been traveling through space for about 1.34 billion years, giving us a glimpse of what the universe looked like in the distant past. While often cited as the nearest "true" quasar,

Observing quasars, especially those that are relatively close by (in cosmological terms), provides valuable insights into the evolution of supermassive black holes and their host galaxies. However, detecting and studying quasars at large distances is challenging due to their faintness and the fact that their light is redshifted (shifted towards the red end of the spectrum) due to the expansion of the universe. The nearest quasar is a topic of significant

The nearest known quasar to Earth is .

The Closest Beacons: Unveiling the Nearest Quasars Quasars, or "quasi-stellar radio sources," are the most luminous and energetic objects in the universe. Powered by supermassive black holes at the centers of galaxies, these cosmic powerhouses emit more energy than hundreds of entire galaxies combined. While most quasars are found in the incredibly distant, ancient universe, a few reside relatively close to our cosmic neighborhood, offering a front-row seat to one of the most violent phenomena in space. The Closest of All: Markarian 231