Hemisphere:  Northern  ·  Constellation: Pegasus (Peg)  ·  Contains:  NGC 7253  ·  PGC 1862633  ·  PGC 214817  ·  PGC 214818  ·  PGC 68543  ·  PGC 68573
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Arp 278 (NGC 7253 A/B) and UGC11981, 



    
        

            lowenthalm
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Arp 278 (NGC 7253 A/B) and UGC11981

Getting plate-solving status, please wait...
Arp 278 (NGC 7253 A/B) and UGC11981, 



    
        

            lowenthalm
Powered byPixInsight

Arp 278 (NGC 7253 A/B) and UGC11981

Acquisition details

Dates:
Sept. 3, 2018
Frames:
300×2(10′)
Integration:
10′
Avg. Moon age:
22.55 days
Avg. Moon phase:
45.76%

RA center: 22h19m13s.494

DEC center: +29°2039.71

Pixel scale: 0.998 arcsec/pixel

Orientation: -55.574 degrees

Field radius: 0.297 degrees

More info:Open 

Resolution: 1772x1202

File size: 11.9 MB

Locations: Home, Vancouver, Washington, United States

Data source: Backyard

Description

Processing through my backlog of data from last year, I came across this fascinating interacting pair of galaxies, NGC 7253 A/B in Pegasus, which are number 278 in Arp's catalog of unusual galaxies. A nice little face-on spiral can be seen in the upper left, UGC 11981. You can also see a compact cluster of distant galaxies just below the bright star on the left.

After imaging at bin2, I thought I would try getting a closer view at bin1. That's the inset close-up image. Both images were 10 minutes of 2 second exposures. I really needed more for the the bin1 image. I'll try to revisit this sometime this year and see I can get some additional bin 1 data to improve the close-up view.

Color is a little bluer than I think it should be. The IDAS filter can be tricky to color correct under some sky conditions.

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Arp 278 (NGC 7253 A/B) and UGC11981, 



    
        

            lowenthalm

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