Merak (β Ursae Majoris)
A blue → dwarf star of → spectral type A1 with an → apparent magnitude of 2.37 in the constellation → Ursa Major. It lies 79 → light-years away and has a → luminosity almost 60 times solar, and a mass about triple that of the Sun. Although Merak ranks fifth in brightness in the → Big Dipper, it received the Beta designation from Bayer, who lettered the Dipper's stars from front to back.
From Ar. al-Maraqq (