Assertion: nebula's star | /r/Synonym | red dwarfs
Facets:
Source sentences:
text: The smallest stars, known as red dwarfs, may contain as little as 10% the mass of the Sun and emit only 0.01% as much energy, glowing feebly at temperatures between 3000-4000K.
text: Near the end of their lives, stars of low and medium mass swell into enormous cool stars known as red giants.