Alpha Delphini, also known as Sualocin, is the brightest star in the constellation Delphinus. It is located approximately 1,200 light-years away from Earth and is classified as a spectral type A0 IV star, indicating it is a subgiant. This star is notable for its unique double nature, as it is part of a binary system. The two stars in this system orbit each other, creating a fascinating dynamic that can be observed with telescopes. Alpha Delphini is also recognized for its relatively high luminosity, shining brightly in the night sky.