Stephenson 2-18
Stephenson 2-18 (also called Stephenson 2 DFK 1 or RSGC2-01) is an extreme red hypergiant star in the constellation Scutum. Stephenson 2-18 is the largest confirmed star with an unconfirmed radius, as a 2020 estimate placed it at 2,150 Solar Radii. It is one of the most luminous stars known. Astronomical data Radius (in Solar Radii): ~1,300 R☉ Diameter (in… Continue reading Stephenson 2-18