Jisho

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ほっきょくせい 北極星
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Noun
1. Polaris (star in the constellation Ursa Minor); Alpha Ursae Minoris; the North Star​Astronomy, See also ポラリス
Wikipedia definition
2. Pole star​"North Star" redirects here. For other uses, see North Star (disambiguation). A pole star is a visible star, an especially prominent one, that is approximately aligned with the Earth's axis of rotation; that is, a star whose apparent position is close to one of the celestial poles, and which lies approximately directly overhead when viewed from the Earth's North Pole or South Pole. A similar concept also applies to other planets.
Read “Pole star” on English Wikipedia
Read “北極星” on Japanese Wikipedia
Read “Pole star” on DBpedia

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