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| Keywords: Heic0902a1.jpg en The three pictured galaxies ” NGC 7173 middle left NGC 7174 middle right and NGC 7176 lower right ” are part of the Hickson Compact Group 90 named after astronomer Paul Hickson who first catalogued these small clusters of galaxies in the 1980s NGC 7173 and NGC 7176 appear to be smooth normal elliptical galaxies without much gas and dust In stark contrast NGC 7174 is a mangled spiral galaxy barely clinging to independent existence as it is ripped apart by its close neighbours The strong tidal interaction surging through the galaxies has dragged a significant number of stars away from their home galaxies These stars are now spread out forming a tenuous luminous component in the galaxy group http //www spacetelescope org/news/html/heic0902 html NASA ESA and R Sharples University of Durham U K 2009-03-02 Heic0902a jpg Hubble images NGC 7173 NGC 7174 NGC 7176 | ||||
