"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

Proxima Centauri is a small, dim red dwarf star located approximately from Earth in the constellation Centaurus. It is part of the Alpha Centauri triple star system, gravitationally bound to the binary pair Alpha Centauri AB with an orbital period of roughly 550,000 years. Stellar Characteristics

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