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IC 63, IC59 and Gamma Cassiopeiae HaRGB

Technical card

Resolution: 3350x2750

Dates: Nov. 6, 2015

Frames:
Astrodon Blue: 2x120" -25C bin 1x1
Astrodon Green: 17x120" -25C bin 1x1
Astrodon Ha 3nm: 15x1800" -25C bin 1x1
Astrodon Red: 36x120" -25C bin 1x1

Integration: 9.3 hours

Darks: ~60

Flats: ~30

Flat darks: ~60

Bias: ~200

Avg. Moon age: 24.38 days

Avg. Moon phase: 27.11%

Mean SQM: 18.60

Astrometry.net job: 1489713

RA center: 14.809 degrees

DEC center: 60.925 degrees

Pixel scale: 1.435 arcsec/pixel

Orientation: -179.952 degrees

Field radius: 0.864 degrees

Locations: The Hills Observatory, Manchester, United Kingdom

Description

The actual exposures were:
Ha 12 x 1200s and 7 x 1800s
Red 3 x 600s and 21 x 120s
Green 18 x 120s
Blue 2 x 120s

Yes that is just two 120s subs with the blue filter, and I am very pleased how well this image turned out. I was planning to address that with more blue & green subs, plus more Ha to go deeper and also some OIII, but perhaps I won't, as a re-process using the existing data improved the image enough so I now declare it finished.

Comments

Author

Mike Oates
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Revisions

B

Improved processing, sharper and better colour especially in the stars.

Sky plot

Sky plot

Histogram

IC 63, IC59 and Gamma Cassiopeiae HaRGB, Mike Oates