ekuator qiellor

ekuator qiellor

The great circle of the celestial sphere all points of which are 90 degrees from the poles. It is the plane of the earth's equator projected onto the celestial sphere.

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品詞: 名詞
同義語
ブロッサリ
産業/ドメイン天文学
カテゴリ火星
Company: NASA
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