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The Tadpole Galaxy - ARP 188, 





    
        

            Kevin Morefield
The Tadpole Galaxy - ARP 188

The Tadpole Galaxy - ARP 188

Technical card

Imaging telescope or lens:Planewave CDK14

Imaging camera:SBIG STX 16803

Mount:Paramount ME II

Guiding telescope or lens:Planewave CDK14

Software:Adobe Photoship CCCCDWare CCDAutoPilot 5CCDWare CCDStack 2PixInsight

Resolution: 2689x2410

Dates:May 6, 2019

Frames:
Astrodon Blue: 20x600" -30C bin 1x1
Astrodon Green: 26x600" -30C bin 1x1
Astrodon Luminance: 23x600" -30C bin 1x1
Astrodon Red: 27x600" -30C bin 1x1

Integration: 16.0 hours

Darks: ~20

Flats: ~20

Bias: ~20

Avg. Moon age: 1.55 days

Avg. Moon phase: 2.68%

Bortle Dark-Sky Scale: 3.00

Astrometry.net job: 2702998

RA center: 241.540 degrees

DEC center: 55.443 degrees

Pixel scale: 0.728 arcsec/pixel

Orientation: 234.146 degrees

Field radius: 0.365 degrees

Locations: Sierra Remote Observatory, Auberry, California, United States

Data source: Own remote observatory

Remote source: Sierra Remote Observatories

Description

This galaxy makes up for its small size by displaying a beautiful tidal interaction with a passing galaxy. Interestingly, that second galaxy can be seen through the main spiral about 300,000 light years behind our view. The tail it produced is a similar size at 280,000 light years. Go to the full resolution view and you can see the interloper as a vertical blob through the spirals.

At only 3.2 arc-minutes in size this is a challenge. If I was starting over I'd probably use less of a stretch to control noise better. The tail is actually pretty bright compared to the say the tail on the Hamburger galaxy.

This is 16 hours total integration time. I used a super luminance, combining the luminance data from the color subs with the luminance to get the most I could out of the data.

Comments

Author

morefield
Kevin Morefield
License: None (All rights reserved)
2059
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The Tadpole Galaxy - ARP 188, 





    
        

            Kevin Morefield