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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.
This table lists those stars or other objects which have Bayer designations, grouped by the constellation part of the designation. α β γ δ ...
Phecda / ˈ f ɛ k d ə /, also called Gamma Ursae Majoris (γ Ursae Majoris, abbreviated Gamma UMa, γ UMa), [10] [11] is a star in the constellation of Ursa Major.Since 1943, the spectrum of this star has served as one of the stable anchor points by which other stars are classified. [12]
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.
Pedro de Ursúa (1526 –January 1, 1561) was a Spanish conquistador from Baztan in Navarre. [1] [2] He is best known for his final trip with Lope de Aguirre in search for El Dorado, where he was assassinated in a plot by a fellow officer.
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]
NGC 3198, also known as Herschel 146 [5] is a barred spiral galaxy in the constellation Ursa Major.It was discovered by William Herschel on 15 January 1788. [6] [3] NGC 3198 is located in the Leo Spur, [3] which is part of the Virgo Supercluster, [7] and is approximately 47 million light years away.