Answer:
proxima centauri
-It's a red dwarf star with only about an eighth of the mass of the sun. Faint red Proxima Centauri – at only 3,100 degrees K (5,120 F) and 500 times less bright than our sun – is nearly a fifth of a light-year from Alpha Centauri A and B.
Explanation:
Red stars are the coolest. Yellow stars are hotter than redstars. White stars are hotter than red and yellow. Blue starsare the hottest stars of all