north celestial pole


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north celestial pole

See celestial poles.

North Celestial Pole

 

one of the two points of intersection of the celestial sphere with the earth’s axis, that is, with a line parallel to the earth’s axis of rotation and passing through the center of the celestial sphere. In the 20th century the north celestial pole, which wanders as a result of precession, is located approximately 1° from the star Polaris.

References in periodicals archive ?
I GENERALLY IGNORE the region around the north celestial pole. However, I recently spent some time studying NGC 2276 and NGC 2300, which lie in Cepheus just 4.1[degrees] from Polaris and 6.4' from each other.
The NEP dwells at the center of a huge circle traced out by the north celestial pole as Earth's axis executes a leisurely wobble that takes 25,800 years.
Polaris is very close to the north celestial pole around which the rest of the Little Dipper circles, forever visible above the horizon for viewers from the North Pole to the tropics.
The sidereal time is determined by the right ascension of the objects that lie on the meridian, the line that stretches from the north celestial pole through the zenith and down to the southern horizon.
If we go back just over 400,000 years, Aldebaran and Capella were very close together in the sky--and at one point were together near the north celestial pole. They were both considerably brighter than magnitude 0, with Aldebaran about twice as bright as Capella.
Egypt's Great Pyramid was oriented to the sky's daily rotation around the north celestial pole, which establishes directionality in the landscape.
It swings around at 3/4[degrees] from the north celestial pole, so on June evenings Polaris is not quite 2[degrees] lower than it is in December.
At the north end, the meridian line climbs a stairway constructed to ascend at the angle of the north celestial pole. At night, visitors can sight the North Star along the stairway's central banister.

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