Astrodvorek Kamenne Zehrovice Galaxy cluster  Abell 2197 After Abell 2151  (called also Hercules cluster) and neighbouring Abell 2199,  the Abell 2197 is my third (and  most northern) galaxy cluster from the Hercules supercluster. For sure the summer solstice is not the best time for astrophotography and the cluster is for some reason (less attractive ?) not often photographed, but to my surprise even with my moderate 8" scope the picture came off quite well.. and the cluster itself looks nice and interesting, with two large elliptical surrounded by many spiral galaxies.. Here you can see the whole field full of galaxies between the two giant elliptical galaxies NGC 6173 (left) and NGC 6160. There are also many quasars here, but Aladin found only one with redshift more than three, specifically z=3.17 (the light traveled to the telescope 11.7 billion years), see as usual the arrow on the right below the center.     click to enlarge   Back to Galaxies   Data: Optics:           NoName Newton 192/800                         + GPU c.c. Camera:         Atik One 6 Filters:           LRGB Baader Mount:            SW AZEQ-6 Guider:          Lacerta MGEN on 50mm finder Exposure:      30x5 min. (L)                               (3x) 8x5 min. (R, G, B), bin 2x2 Software:     PixInsight, Photoshop Date:            21.+24.6.2025