せきどうざひょう
赤道座標
1. equatorial coordinates
2. Equatorial coordinate systemThe equatorial coordinate system is a widely-used method of specifying the positions of celestial objects. It may be implemented in spherical or rectangular coordinates, both defined by an origin at the center of the Earth, a fundamental plane consisting of the projection of the Earth's equator onto the celestial sphere, a primary direction towards the vernal equinox, and a right-handed convention.
Read “Equatorial coordinate system” on English Wikipedia
Read “赤道座標” on Japanese Wikipedia
Read “Equatorial coordinate system” on DBpedia
Read “Equatorial coordinate system” on English Wikipedia
Read “赤道座標” on Japanese Wikipedia
Read “Equatorial coordinate system” on DBpedia
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