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来自维基百科,自由的百科全书
英仙座21,又名BD+31 509,HD 18296、SAO 56031、HR 873,是英仙座的一顆恆星[1][2],視星等為5.11,位於銀經151.88,銀緯-23.77,其B1900.0坐標為赤經2h 51m 12.9s,赤緯+31° -23.77′ 54″。
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.