Contains:NGC 7337, NGC 7335, NGC 7331, NGC 7320, NGC 7319, NGC 7318, Stephan's Quintet, NGC 7317
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NGC 7331 and Stephan's Quintet, 




    

        Kharan
NGC 7331 and Stephan's Quintet

NGC 7331 and Stephan's Quintet

Technical card

Resolution: 3246x2341

Dates: Sept. 3, 2017

Frames:
Baader Blue 2": 22x180" -20C bin 1x1
Baader Green 2": 22x180" -20C bin 1x1
Baader L 2'': 45x180" -20C bin 1x1
Baader Red 2": 22x180" -20C bin 1x1

Integration: 5.6 hours

Flats: ~10

Bias: ~50

Avg. Moon age: 12.05 days

Avg. Moon phase: 91.87%

Astrometry.net job: 1716901

RA center: 339.034 degrees

DEC center: 34.168 degrees

Pixel scale: 1.106 arcsec/pixel

Orientation: 255.557 degrees

Field radius: 0.615 degrees

Locations: Puolivälinkangas - Oulu, Oulu, Finland

Data source: Unknown

Description

This was a real struggle with the colors, hard to get anything sensible out of this. Probably too short exposures.

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Author

Kharan
Kharan
License: None (All rights reserved)
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NGC 7331 and Stephan's Quintet, 




    

        Kharan