Proxima Now

: Its surface temperature is about 3,000 K, much cooler than the Sun’s 5,778 K. 2. The Planetary System

: M-type red dwarf and a "flare star," prone to sudden, violent increases in brightness due to magnetic activity. Proxima

: It has about 12.5% of the Sun's mass and 14% of its diameter. : Its surface temperature is about 3,000 K,