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The M81 Group is a galaxy group in the constellations Ursa Major and Camelopardalis that includes the galaxies Messier 81 and Messier 82, as well as several other galaxies with high apparent brightnesses. [1] The approximate center of the group is located at a distance of 3.6 Mpc, making it one of the nearest groups to the Local Group. [1]
Early illustration showing how many of the stars in Ursa Major move in a group. The Ursa Major Moving Group, also known as Collinder 285 and the Ursa Major association, is the closest stellar moving group – a set of stars with common velocities in space and thought to have a common origin in space and time.
47 Ursae Majoris is the Flamsteed designation.On their discoveries the planets were successively designated 47 Ursau Majoris b, c and d. In July 2014 the International Astronomical Union launched NameExoWorlds, a process for giving proper names to certain exoplanets and their host stars. [11]
Mizar, together with Alcor and many of the other bright stars in Ursa Major, is a member of the Ursa Major Moving Group. [25] Mizar may have been the first telescopic binary known to Europeans; Benedetto Castelli in 1617 asked Galileo Galilei to observe it. Galileo then produced a detailed record of the double star. [26]
Xi Ursae Majoris is a quintuple star system 28.5 light-years (8.7 parsecs) away in the constellation of Ursa Major.It has the traditional name Alula Australis; [1] [10] Xi Ursae Majoris is the Bayer designation, which is Latinised from ξ Ursae Majoris and abbreviated Xi UMa or ξ UMa.
Gamma Ursae Minoris (γ Ursae Minoris, abbreviated Gamma UMi, γ UMi), also named Pherkad / ˈ f ɜːr k æ d /, [11] [12] is a star in the northern constellation of Ursa Minor. Together with Beta Ursae Minoris (Kochab), it forms the end of the dipper pan of the "Little Dipper", which is an asterism forming the tail of the bear.
The Ursa Major Cluster (Ursa Major I Cluster, UMa I ClG) is a spiral-rich galaxy cluster of the Virgo Supercluster. Some of its largest members are NGC 3631 , NGC 3953 , M109 on North ( M109 Group ) and NGC 3726 , NGC 3938 , NGC 4051 on South.
Ursa, a mother of Zuko and Azula in the franchise Avatar: The Last Airbender; Ursa, a girlfriend of Bear in the television series Bear in the Big Blue House; Ursa, a character in the animation series Disney's Adventures of the Gummi Bears; Ursa, a bear-like race in the franchise Dota. Ulfsaar the Ursa Warrior, a notable character of that race