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Pole Wagon
Pole may refer to: Astronomy *Celestial pole, the projection of the planet Earth's axis of rotation onto the celestial sphere; also applies to the axis of rotation of other planets *Pole star, a visible star that is approximately aligned with the Earth's axis of rotation * Orbital pole, the projection of the line perpendicular to planet Earth's orbit onto the celestial sphere; also applies to the orbit of other planets *Poles of astronomical bodies, concepts analogous to the Earth's geographic and magnetic poles on other planets and Solar System bodies Cylindrical objects A solid cylindrical object or column with its length greater than its diameter, for example: *Asherah pole, a sacred tree or pole that stood near Canaanite religious locations to honor the Ugaritic mother-goddess Asherah, consort of El *Barber's pole, advertising the barber shop *Ceremonial pole or festival pole symbolizes a variety of concepts in several different cultures *Fireman's pole, wooden pole or a metal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Celestial Pole
The north and south celestial poles are the two points in the sky where Earth's rotation around a fixed axis, 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. As Earth spins on its axis, the two celestial poles remain fixed in the sky, and all other celestial points appear to rotate around them, completing one circuit per day (strictly, per sidereal time, sidereal day). The celestial poles are also the poles of the celestial equatorial coordinate system, meaning they have declinations of +90 degrees and −90 degrees (for the north and south celestial poles, respectively). Despite their apparently fixed positions, the celestial poles in the long term do not actually remain permanently fixed against the background of the stars. Because of a phenomenon known as the precession of the equinoxes, the poles trace out ci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
