This interesting group (also known as the Pisces Galaxy Trio) is located at distance of about 100 million light-years (NGC 467 on the right even 250 MLY). The largest galaxy NGC474 (diameter more than 200 kLY, to the left) is a classic shell galaxy interacting with smaller neighbor blue spiral NGC470. Surprisingly the third galaxy NGC467 also shows some hints of shells.
In the background we can also find some much more distant galaxies, already the little face-on spiral near the left edge (PGC 1252050) is situated some billion light-years from Earth.

Total exposure time (with 8" f/4 Newton): 16 hours
 

Dimension: 6.1' x 5'   (NGC474)
Magnitude: 11.5
Surface brightness: 15.5

1-12.9.2016

Optics:
 

Camera:
Filters:
Mount:
Guider
Exposure:

NoName Newton 200/800
+ GPU c.c.
Atik 428EX
LRGB Baader.
SW AZEQ-6
Lacerta MGEN
115x5 min. (L)
26x5 min. bin 2x2
(R,G,B each )

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