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Sh2-187 Nebula in Cassiopeia

Technical card

Dates:Dec. 16, 2017

Blue: 68x300" bin 1x1
Green: 82x300" bin 1x1
Ha 3nm: 11x1200" bin 1x1
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

Basic astrometry details job: 1869587

RA center: 1h 21' 55"

DEC center: +61° 47' 27"

Pixel scale: 1.435 arcsec/pixel

Orientation: 359.999 degrees

Field radius: 0.862 degrees

Resolution: 3326x2764

Locations: The Hills Observatory, Manchester, United Kingdom

Data source: Backyard


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



Mike Oates
License: None (All rights reserved)

Sky plot

Sky plot


Sh2-187 Nebula in Cassiopeia, 


            Mike Oates