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abstraction > mathematical concept > geometrical object > point > coordinate > ecliptic coordinate > first point of Aries |
first point of Aries comparison table |
Subject | is an instance of | is a kind of | has definition |
---|---|---|---|
ecliptic coordinate | coordinate | A system of coordinates based on the plane defined by Earth's orbit around the Sun, which is inclined to the celestial equator. | |
first point of Aries | ecliptic coordinate |