A quasar (/ˈkweɪzɑːr/) (also quasi-stellar object or QSO) is an active galactic nucleus of very .. Most quasars are brightest in their rest-frame near -ultraviolet wavelength of nm Lyman-alpha emission line of hydrogen, but due to the Overview · Properties · History of observation · Multiple quasars. This is a list of quasars. Proper naming of quasars are by Catalogue Entry, Qxxxx ±yy using Einstein Cross, From the fact that gravitational lensing of the quasar forms a near perfect Einstein cross, a concept in gravitational lensing. The Hubble Space Telescope's () find is the nearest quasar at a distance of 60 Mly. This quasar is a whirling-about-each-other binary.
Nearest quasar - läuft