Abell 370 is a galaxy cluster located approximately 6 billion light-years away from the Earth (at redshift z = 0.375), in the constellation Cetus. Its core is made up of several hundred galaxies. It was catalogued by George Abell, and is the most distant of the clusters he catalogued. Abell 370 includes several arcs of light, which in fact are mirages caused by gravitational lensing of more distant objects.
LRGB (500-120-120-120 min) total 14,3 h, seeing 0.9-1.4 arc-sec, north is up
80cm f/7 Astrooptik Keller corrected cassegrain, FLI PL-16803, Baader Filters, Prompt 7 CTIO Chile
processing: Johannes Schedler
Find a crop on the Abell 370 cluster below in 80/200% size
Below there is a gif animation showing the cluster at 200% size in comparison with a Hubble Space Telescope insert
Below a close-up on the distant mag 16 spiral galaxy PGC 135657 at 24” diameter south of the cluster in the same field of view (100%).