Composite tricolor images of Stephan’s Quintet using Hα filters with a recession velocity of 0 (left image) and a recession velocity of 4,200 miles per second (right image). (SUPPLIED)
National Astronomical Observatory of JAPAN-(ENEWSPF)- Subaru Telescope has added another dimension of information about one of the most studied of all compact galaxy groups—Stephan’s Quintet. Located within the borders of the constellation Pegasus, Stephan’s Quintet consists of a visual grouping of five galaxies, four of which…
