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Ursa Major and Polaris with names of bright stars in the Big Dipper The constellation Ursa Major as it can be seen by the unaided eye The outline of the seven bright stars of Ursa Major form the asterism known as the " Big Dipper " in the United States and Canada, while in the United Kingdom it is called the Plough [ 6 ] or (historically ...
Twice in each sidereal day Polaris's azimuth is true north; the rest of the time it is displaced eastward or westward, and the bearing must be corrected using tables or a rule of thumb. The best approximation [33] is made using the leading edge of the "Big Dipper" asterism in the constellation Ursa Major.
The Ursa Major (lit. Great Bear) at Black Thunder Coal Mine, Wyoming, is the largest dragline excavator currently in use in North America and the third largest ever built. [1] [2] It is a Bucyrus-Erie 2570WS model and cost US$50 million. The Ursa Major was one of five large walking draglines operated at Black Thunder, with the next two largest ...
Ursa Major's website features the launch of a Javelin anti-tank missile, a weapon heavily used in Ukraine's efforts to combat the Russian invasion for the last two years. Ursa Major says it can ...
U.S. rocket propulsion startup Ursa Major said on Tuesday it was awarded a $12.5 million contract to build out production and testing for new solid fuel rocket engines. The award, though small, is ...
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]
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Psi Ursae Majoris (Psi UMa, ψ Ursae Majoris, ψ UMa) is a star in the northern circumpolar constellation of Ursa Major. It has an apparent visual magnitude of +3.01, [2] making it a third magnitude star and one of the brighter members of the constellation. Parallax measurements place it at a distance of 140 light-years (43 parsecs) from Earth. [1]