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Sh2-187 Nebula in Cassiopeia

Technical card

Resolution: 3326x2764

Dates: Dec. 16, 2017

Frames:
Blue: 68x300" bin 1x1
Green: 82x300" bin 1x1
Astrodon Ha 3nm: 11x1200" bin 1x1
Astrodon Ha 3nm: 25x1800" bin 1x1
Red: 60x300" bin 1x1
Red: 10x120" bin 2x2

Integration: 34.0 hours

Avg. Moon age: 27.94 days

Avg. Moon phase: 2.85%

Mean SQM: 18.50

Astrometry.net job: 1869587

RA center: 20.481 degrees

DEC center: 61.791 degrees

Pixel scale: 1.435 arcsec/pixel

Orientation: 359.999 degrees

Field radius: 0.862 degrees

Locations: The Hills Observatory, Manchester, United Kingdom

Description

Ha and red subs were simply added together to make the red channel.

Comments

Author

Mike Oates
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Sh2-187 Nebula in Cassiopeia, 




    

        Mike Oates