: It has about 12.5% of the Sun's mass and 14% of its diameter.
: Its surface temperature is about 3,000 K, much cooler than the Sun’s 5,778 K. 2. The Planetary System Proxima
"Proxima" most commonly refers to , the closest known star to our sun, though it is also the name of a leading German fusion energy company . 1. Proxima Centauri: Our Nearest Stellar Neighbor : It has about 12