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出典:Wikipedia
出典:『Wikipedia』 (2011/01/28 17:29 UTC 版)
Gliese 747AB is a red dwarf star located in Lyra near 17 Lyrae (19h 05m 43.7s +32° 26' 42"). Also named 17 Lyrae C or Kuiper 90, it is a binary system with a period of 5 years, and a small angular separation (0.35").
Gliese 747AB