Celestial pole - Wikipedia
网页The north and south celestial poles are the two points in the sky where Earth's axis of rotation, indefinitely extended, intersects the celestial sphere. The north and south celestial poles appear permanently directly overhead to observers at Earth's North Pole and South Pole, respectively.
Celestial pole | astronomy | Britannica
网页definition. In astronomical map: The celestial sphere. …about a northern or southern celestial pole, the projection into space of Earth’s own poles. Equidistant from the two poles is the celestial equator; this great circle is the projection into space of Earth’s Equator. Read More.
What is the North Star and How Do You Find It? - NASA Science
网页2021年7月28日 · Polaris is located quite close to the point in the sky where the north rotational axis points – a spot called the north celestial pole. As our planet rotates through the night, the stars around the pole appear to rotate around the sky.
Celestial poles - Vocab, Definition, and Must Know Facts - Fiveable
网页Celestial poles are the two imaginary points in the sky where Earth's axis of rotation, indefinitely extended, intersects the celestial sphere. The North Celestial Pole is near Polaris, while the South Celestial Pole does not have a bright star marking its position.
2.1 The Sky Above - Astronomy 2e - OpenStax
网页The celestial poles, being 90° from the celestial equator, must then be at the north and south points on your horizon. As the sky turns, all stars rise and set; they move straight up from the east side of the horizon and set straight down on the west side.
Celestial Pole -- from Eric Weisstein's World of Astronomy
网页The celestial poles are the projections of the Earth's north and south poles into the celestial sphere. Because of precession of the equinoxes, these poles wander along a circle with a period of about 26,000 years.
Understanding The Celestial Sphere | High Point Scientific
网页2022年11月16日 · The Celestial objects we see in the sky appear to be located on the surface of a great sphere of immense diameter, with us at the center. This is called “the Celestial Sphere”. Learn more!
The North Celestial Pole - Montana
网页The North Celestial Pole is the point in the sky about which all the stars seen from the Northern Hemisphere rotate. The North Star, also called Polaris, is located almost exactly at this point in the sky.
celestial pole | Encyclopedia.com
网页celestial pole, one of the two points at which the earth's axis of rotation intersects the celestial sphere. The celestial pole is important as a reference point in the equatorial coordinate system; the celestial meridian passes through it, …
Latitude and the stars: Location is key - EarthSky
网页2023年1月30日 · That’s because the celestial pole is at your zenith, or overhead point. The stars don’t rise or set, but instead move around your sky, parallel to each other and parallel to the horizon.
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