noun
red dwarf
Astronomical term for a small, relatively cool star on the main sequence.
太陽に最も近い恒星は赤色矮星のプロキシマ・ケンタウリです。
The closest star to the Sun is the red dwarf Proxima Centauri.
赤色矮星は宇宙に最も多く存在する恒星の一つだ。
Red dwarfs are one of the most common types of stars in the universe.