Polestar
Related Category: Astronomy: Stars
see Polaris.
More on Polestar
Polaris - (plâr´s) or North Star, star nearest the north celestial pole (see equatorial coordinate system).
The polymath Chinese scientist Shen Kuo (1031-1095) was not only the first in history to describe the magnetic-needle compass, but also a more accurate measurement of the distance between the polestar and true north that could be used for navigation.
It circles the polestar (Polaris) throughout the year and also straddles the Milky Way. The five major stars of Cassiopeia (also known as "The Lady of the Chair") are shaped like a "W" (or an "M," depending on your orientation).
Cassiopeia is one of the stars that orbits the Polestar throughout the year. It is shaped like a W, with a makeup of five second- and third-magnitude stars, and has been a well-known constellation since ancient times.
How far is the polestar from the celestial pole?
Why is the celestial pole important?
What is a celestial pole?
Are there stars by the celestial pole?
What is the celestial pole?
Wmat makes up the atmosphere on Mars?
Who was Cleomedes?
Polessky District, Kaliningrad OblastPolestar (disambiguation)Polesworth
Polesworth AbbeyPolesworth railway stationPoleszuk
Polet AirlinesPoletown, DetroitPoleumita ...
In: Great Books of the World, vol.16, (1952). Chicago: Encyclopaedia Britannica Inc., 505-509. In: C. A RUSSELL, ed. Science in Europe 1500 - 1800, Volume 1, A Primary Sources Anthology. Exeter, UK: Polestar Wheatons Ltd.
(1031-1095) alone was most impressive, as he theorized that the sun and moon were spherical, corrected the position of the polestar with his improved sighting tube, discovered the concept of true north ...
The representation thus handed down (in the verses of Aratus) has been thought to tally best with the state of the sky about 2000 B.C.; 12 and the mention of a polestar, for which Eudoxus was rebuked by Hipparchus, seems, as W. T.
 See also: Star, Earth, Constellation, Astronomy, Equator
|
