An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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Ursa Major star cluster
  خوشه‌ی ِ خرس ِ بزرگ  
xuše-ye Xers-e Bozorg (#)
Fr.: amas de la Grande Ourse  

A moving star cluster containing over 100 stars that are scattered over an area of sky more than 1,000 minutes of arc in diameter. The five brightest stars of the → Big Dipper as well as → Sirius belong to this → dynamical stream.

See also: → Ursa Major; → star; → cluster.