Celestial hemisphere:  Southern  ·  Constellation: Cetus (Cet)  ·  Contains:  NGC 936  ·  NGC 941
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NGC 936 Galaxy Group, 



    
        

            Gary Imm
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NGC 936 Galaxy Group

Getting plate-solving status, please wait...
NGC 936 Galaxy Group, 



    
        

            Gary Imm
Powered byPixInsight

NGC 936 Galaxy Group

Acquisition details

Dates:
Nov. 3, 2019 ·  Nov. 4, 2019
Frames:
Astrodon Gen2 I-Series Tru-Balance Blue: 30×120(1h) (gain: 111.00) -20°C bin 1×1
Astrodon Gen2 I-Series Tru-Balance Green: 30×120(1h) (gain: 111.00) -20°C bin 1×1
Astrodon Gen2 I-Series Tru-Balance Lum: 60×120(2h) (gain: 111.00) -20°C bin 1×1
Astrodon Gen2 I-Series Tru-Balance Red: 30×120(1h) (gain: 111.00) -20°C bin 1×1
Integration:
5h
Avg. Moon age:
6.98 days
Avg. Moon phase:
45.79%

RA center: 02h28m03s.969

DEC center: -01°1332.75

Pixel scale: 0.494 arcsec/pixel

Orientation: -7.972 degrees

Field radius: 0.248 degrees

More info:Open 

Resolution: 2851x2222

File size: 2.0 MB

Locations: Backyard (Mag 20.8 - Bortle 4.5), Onalaska, Texas, United States

Data source: Backyard

Description

This image captures a trio of galaxies located in the constellation of Cetus at a declination of -1 degrees. I like this framing because all 3 galaxies present interesting, fairly clear structures to us. I could find few other images of this trio on the internet - I am surprised it is not imaged more. These galaxies are only a group because of our line of sight - they are not close enough to be gravitationally interacting.

The brightest galaxy above is NGC 936, a face-on barred spiral galaxy located 90 million light years away in the upper right of the image. The galaxy spans 6 arc-minutes in our apparent view, which corresponds to a large diameter of 150,000 light years. The galaxy has a magnitude of 10.2 and a surface brightness of 13.5. I love the detail of the barred region. NGC 936 is nicknamed Darth Vader's Galaxy because of its resemblance to a TIE starfighter. I like the color contrast of this yellow galaxy with the other 2 blue galaxies.

The galaxy at upper left is NGC 941, a somewhat irregular-looking face-on spiral galaxy located 55 million light years away. UGC 1945 is the nearly edge-on irregular galaxy at the bottom of the image located 80 million light years away.

Many stellar-like orange galaxies are visible in the background, seen best in the full resolution view.

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