ARP 227 NGC 474

[Petergoodhew]

An unusual group of galaxies i(ARP 227) in the constellation of Pisces. Outer shells may have been created from gravitational interaction between galaxies. The largest galaxy is NGC 474. It is 100 million light years away, and about 250,000 light years across. The outer shells are extremely faint and have necessitated 1800s luminance exposures.

Astrodon Blue: 63x300" bin 2x2
Astrodon Green: 64x300" bin 2x2
Astrodon Lum: 54x1800" bin 1x1
Astrodon Red: 54x300" bin 2x2

Total Integration: 42.1 hours

Captured on my dual rig in Spain.
Scopes: APM TMB LZOS 152
Cameras: QSI6120wsg8
Mount: 10Micron GM2000 HPS

 

Edited October 5, 2019 by Petergoodhew

[geordie85]

This is a great image. 

I've thought about this target myself, but the results won't compare to this from my skies. 

[Petergoodhew]

1 hour ago, geordie85 said:

This is a great image. 

I've thought about this target myself, but the results won't compare to this from my skies. 

Thanks Geordie.  This is a tough one with dark skies.  Getting those shells in poor skies will be really tricky.

[Allinthehead]

A great image and a fascinating collection of Galaxies 

[jjosefsen]

I love those Arp galaxies! That's a great image, thanks for sharing.

I think I will have to look that one up in the ol' atlas.