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Arp 227 NGC 474

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About this observation
Observer
Peter Goodhew FRAS
Time of observation
27/09/2019 - 22:30
Object
ARP 227 NGC 474
Observing location
Fregenal de la Sierra, Spain
Equipment
APM TMB 152 LZOS refractors
10Micron GM2000 HPS mount
QSI6120wsg8 cameras
Exposure
42.1 hours LRGB
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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

Comments

rotty's picture

Absolutely amazing Peter. I just wish I had your patience an skill.

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