An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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Type 2 Seyfert (Sy 2)
  کهکشان ِ سیفرت ِ گونه‌ی ِ ۲  
kahkešân-e Seyfert-e guné-ye 2
Fr.: galaxie Seyfer de type 2  

A type of → Seyfert galaxy showing only narrow emission lines and weak UV and X-ray emissions
but strong IR emission.

See also: → type; → two; → Seyfert galaxy.