The closest Red Giant Beta Andromeda which also called Mirach. It is an M0 III star about 23 parsecs from the Sun. Its Luminosity is about 75 times that of the Sun. It is of apparent magnitude +2.03 and has a faint +14m companion about 28 arcseconds from it and is a dwarf star about 800 times less luminous than our Sun. Mirach is suspected of a slight variability.