ecliptic pole — noun : either of the poles in the ecliptic system of coordinates … Useful english dictionary
ecliptic — ecliptically, adv. /i klip tik/, n. 1. Astron. a. the great circle formed by the intersection of the plane of the earth s orbit with the celestial sphere; the apparent annual path of the sun in the heavens. b. an analogous great circle on a… … Universalium
Pôle de l'écliptique — Pour les articles homonymes, voir Pôle (homonymie). En astronomie, les deux pôles de l écliptique sont les points d intersection de la sphère céleste et d un axe perpendiculaire au plan de l écliptique et passant par le centre de la Terre.… … Wikipédia en Français
Pole — Pole, n. [L. polus, Gr. ? a pivot or hinge on which anything turns, an axis, a pole; akin to ? to move: cf. F. p[^o]le.] 1. Either extremity of an axis of a sphere; especially, one of the extremities of the earth s axis; as, the north pole. [1913 … The Collaborative International Dictionary of English
Pole shift hypothesis — Polar Shift redirects here. For the Clive Cussler novel, see Polar Shift (novel). For the Antarctica benefit compilation, see Polar Shift (album). This article is about the hypothesis of pole shift in its historical context. For a description of… … Wikipedia
Magnetic pole — Pole Pole, n. [L. polus, Gr. ? a pivot or hinge on which anything turns, an axis, a pole; akin to ? to move: cf. F. p[^o]le.] 1. Either extremity of an axis of a sphere; especially, one of the extremities of the earth s axis; as, the north pole.… … The Collaborative International Dictionary of English
Celestial pole — The north and south celestial poles and their relation to axis of rotation, plane of orbit and axial tilt … Wikipedia
Precession (astronomy) — In astronomy, precession refers to the movement of the rotational axis of a body, such as a planet, with respect to inertial space. In particular, it refers to the precession of the Earth s rotational axis, also called the precession of the… … Wikipedia
astronomical map — Introduction any cartographic representation of the stars, galaxies, or surfaces of the planets and the Moon. Modern maps of this kind are based on a coordinate system analagous to geographic latitude and longitude. In most cases, modern… … Universalium
Celestial coordinate system — For other uses of Celestial , see Celestial (disambiguation). Orientation of Astronomical Coordinates Orientation of the galactic, ecliptic and equatorial coordinate systems, projected on the celestial sphere, showing the galactic equator (black) … Wikipedia