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Polaris is the brightest star in the constellation of Ursa Minor (upper right). Big Dipper and Ursa Minor in relation to Polaris. A view of Polaris in a small telescope. Polaris B is separated by 18 arc seconds from the primary star, Polaris A. A 4 day time lapse of Polaris illustrating its Cepheid type variability.
Pole star. A pole star is a visible star that is approximately aligned with the axis of rotation of an astronomical body; that is, a star whose apparent position is close to one of the celestial poles. On Earth, a pole star would lie directly overhead when viewed from the North or the South Pole .
Polaris (within 1° of the pole) is the nearly stationary bright star just to the right of center in this star trail photo. The north celestial pole currently is within one degree of the bright star Polaris (named from the Latin stella polaris, meaning "pole star"). This makes Polaris, colloquially known as the "North Star", useful for ...
Songs. One reportedly coded Underground Railroad song is "Follow the Drinkin' Gourd". [ 1] The song's title is said to refer to the star formation (an asterism) known in America as the Big Dipper and in Europe as The Plough. The pointer stars of the Big Dipper align with the North Star. In this song the repeated line "Follow the Drinkin' Gourd ...
A star-forming region in the Large Magellanic Cloud. A star is a luminous spheroid of plasma held together by self-gravity. [1] The nearest star to Earth is the Sun. Many other stars are visible to the naked eye at night; their immense distances from Earth make them appear as fixed points of light.
Axial precession. Precessional movement of Earth. Earth rotates (white arrows) once a day around its rotational axis (red); this axis itself rotates slowly (white circle), completing a rotation in approximately 26,000 years [1] In astronomy, axial precession is a gravity-induced, slow, and continuous change in the orientation of an astronomical ...
The North Star was a nineteenth-century anti-slavery newspaper published from the Talman Building in Rochester, New York, by abolitionists Martin Delany and Frederick Douglass. The paper commenced publication on December 3, 1847, and ceased as The North Star in June 1851, when it merged with Gerrit Smith's Liberty Party Paper (based in Syracuse ...
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