ultraluminous

== English == === Alternative forms === ultra-luminous === Etymology === From ultra- +‎ luminous. === Adjective === ultraluminous (not comparable) Very luminous (astronomy) Very luminous, though less luminous than that classified as hyperluminous. Having a luminosity near below, at, or, exceeding Eddington luminosity, exceeding the Eddington limit ==== Coordinate terms ==== ==== Derived terms ==== ==== Related terms ====