Galaxy
Quasar
A blindingly bright young galactic nucleus.
Extremely luminous active galactic nuclei powered by supermassive black holes accreting at high rates — often outshining their entire host galaxy.
Overview
Extremely luminous active galactic nuclei powered by supermassive black holes accreting at high rates — often outshining their entire host galaxy.
See also
Seyfert Galaxy
A spiral galaxy with a bright, active nucleus.
Hoag's Object
A near-perfect ring galaxy with a mysterious bright core.
Quasi-stellar Object (QSO)
A 'star-like' but extragalactic light source.
LINER
A galaxy with a low-luminosity active nucleus.
Narrow-line Seyfert 1
An unusually variable young Seyfert.
Luminous Infrared Galaxy (LIRG)
A merger-fuelled infrared bright galaxy.