Abell 426 is a huge galaxy cluster which belongs to the Perseus-Pisces supercluster. It is situated in the constellation of Perseus near star Algol (beta Per), far (about 250 million light-years) behind many faint foreground stars of our own galaxy. It's central cD galaxy NGC 1275 is a strong source of x-rays and radio emission.  Really nice view with plenty of galaxies..
It is also interesting that the largest supermassive black holes are not found in the two largest galaxies, but in other less conspicuous ones. E.g. in NGC 1270, NGC 1281, NGC 1277 and NGC 1271 the supermassive holes have masses of 12, 10, 5 and 3 billion Suns respectively, much more than ~ 500 million Solar masses of the black hole in the central most prominent NGC 1275 .
 

Optics:       NoName Newton 192/800
                   +GPU c.c.
Camera:    Atik One 6
Filters:        LRGB Baader
Mount:      SW AZEQ-5
Guider:       Lacerta MGEN
Exposure:  108x5 min. (L)
                       28x5 min. (R, G, B each), bin 2x2
Software:  PixInsight, Photoshop
12.-15. 10. 2018

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