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来自维基百科,自由的百科全书
HD 205420,又名BD+22 4431,SAO 89807、HR 8250,是一颗恒星[1][2],视星等为6.47,位于銀經74.48,銀緯-21.08,其B1900.0坐标为赤經21h 29m 59.8s,赤緯+22° -21.08′ 39″。
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.