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27 Cancri
  27 Cancri is a star in the constellation Cancer. 27 Cancri is a  M-type red giant with a mean apparent magnitude of +5.56.  It is approximately 1050 light years from Earth.  It is classified as a semiregular variable star and its brightness varies from magnitude +5.41 to +5.75 with a period of 40 days. It has been analysed as a member of the Arcturus stream,  a group of stars with high proper motion and metal-poor properties thought to be the remnants of a small galaxy consumed by the Milky Way. ==References==
 
 
  抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「27 Cancri」の詳細全文を読む
 
 
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