Big Dipper

pattern of seven bright stars in the constellation Ursa Major

Mizar is a second-magnitude star in the handle of the Big Dipper asterism in the constellation of Ursa Major. It has the Bayer designation ζ Ursae Majoris (Latinised as Zeta Ursae Majoris). It forms a well-known naked eye double star with the fainter star Alcor (a binary system consisting of Alcor A and Alcor B), and is itself a quadruple star system. The Mizar and Alcor system lies about 83 light-years away from the Sun, as measured by the Hipparcos astrometry satellite, and is part of the Ursa Major Moving Group.

Alioth , also called Epsilon Ursae Majoris, is a star in the northern constellation of Ursa Major. The designation is Latinised from ε Ursae Majoris and abbreviated Epsilon UMa or ε UMa. Despite being designated "ε" (epsilon), it is the brightest star in the constellation and at magnitude 1.77 is the thirty-third brightest star in the sky.

Dubhe is a multiple star system in the northern constellation of Ursa Major. It is formally designated Alpha Ursae Majoris, Latinised from α Ursae Majoris, Despite being designated "α" (alpha), it is the second-brightest object in the constellation. Alpha Ursae Majoris is the northern of the 'pointers' (or 'guards'), the second being Beta Ursae Majoris, or 'Merak' – this pair of stars point towards Polaris, the North Star. α Ursae Majoris is located at a distance of approximately 123 light years from the Sun, based on parallax measurements.

Alkaid , also called Eta Ursae Majoris (Latinised from η Ursae Majoris, abbreviated Eta UMa, η UMa), is a star in the constellation of Ursa Major. It is the easternmost star in the Big Dipper (or Plough) asterism. However, unlike most stars of the Big Dipper, it is not a member of the Ursa Major moving group. With an apparent visual magnitude of +1.86, it is the third-brightest star in the constellation and one of the brightest stars in the night sky.

star in constellation of Ursa Major

star in the constellation of Ursa Major

thumb|right|Phecda is the lower-left star forming the bowl of the Big Dipper

Megrez , also called Delta Ursae Majoris (δ Ursae Majoris, abbreviated Delta UMa, δ UMa), is a star in the northern constellation of Ursa Major. With an apparent magnitude of +3.3, it is the dimmest of the seven stars in the Big Dipper asterism. Parallax measurements yield a distance estimate of from the Sun.

binary stars in the Big Dipper constellation

Taoist deities which represent the four stars of Beidou Seven Stars (Big Dipper), called Dòu kuí (斗魁) or Xuánjī (璇璣) collectively, tutelary deities of students and scholars in Chinese folk religion

Matarajin (摩多羅神) or Madarajin (摩怛哩神) is a Buddhist god chiefly venerated in the Tendai school of Japanese Buddhism. While originally regarded as a wrathful deity obstructing rebirth in the pure land, and thus a "god of obstacles", with time he also came to be seen as a protector of adherents of Tendai doctrine, capable of warding off demons, especially tengu, as well as epidemics. He also acquired other roles, including these of a protector of performing arts (for example noh and sarugaku) and of an astral god of destiny. He additionally came to be identified with a large number of other figur