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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.
U.S. rocket propulsion start-up Ursa Major said on Monday it had signed a contract with the United States Navy to develop and test solid fuel rocket engines in an effort to develop a next ...
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 ...
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]
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 ...
Based on the numbers of its constituent stars, the Ursa Major Moving Group is believed to have once been an open cluster, having formed from a protostellar nebula approximately 500 million years ago. Since then, the sparse group has scattered over a region about 30 by 18 light-years, whose center is currently about 80 light-years away, making ...
61 Ursae Majoris, abbreviated 61 UMa, is a single [13] star in the northern circumpolar constellation of Ursa Major. It has a yellow-orange hue and is dimly visible to the naked eye with an apparent visual magnitude of 5.35. [2]