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Noun
1. ecliptic coordinates
Wikipedia definition
2. Ecliptic coordinate systemThe ecliptic coordinate system is a celestial coordinate system that uses the ecliptic for its fundamental plane. The ecliptic is the path that the sun appears to follow across the celestial sphere over the course of a year. It is also the intersection of the Earth's orbital plane and the celestial sphere. The latitudinal angle is called the ecliptic latitude or celestial latitude (denoted β), measured positive towards the north.
Read “Ecliptic coordinate system” on English Wikipedia
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Read “Ecliptic coordinate system” on DBpedia

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