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Contains:  NGC 457, IC 63, gamma Cas nebula, IC 59, NGC 225, The star φCas, The star υ2Cas, The star Navi (γCas), The star υ1Cas, The star ηCas
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Sh2-185 - IC59 - IC63 - Cassiopeia widefield, 





    
        

            Jens Zippel
Sh2-185 - IC59 - IC63 - Cassiopeia widefield

Sh2-185 - IC59 - IC63 - Cassiopeia widefield

Technical card

Resolution: 1920x1459

Dates:Sept. 17, 2016

Frames:
Astrodon Ha 5nm: 20x600"
Astrodon Luminance E-Series: 32x300"
Astrodon RGB E-Series: 68x300"

Integration: 11.7 hours

Avg. Moon age: 15.56 days

Avg. Moon phase: 99.28%

Astrometry.net job: 1418558

RA center: 15.310 degrees

DEC center: 60.906 degrees

Pixel scale: 13.494 arcsec/pixel

Orientation: 93.007 degrees

Field radius: 4.519 degrees

Locations: Upper Borg Observatory, Bremen, Bremen, Germany; Deep Sky West Remote Obsevatory (DSW), Rowe, New Mexico, United States

Description

Ghost of Cassiopeia was enhanced with my own narrowband and RGB exposures from 2015.

Looking towards the constellation of Cassiopeia, there is a colorful sky landscape with the melting gas clouds IC 59 (above) and IC 63 (below). The clouds are about 600 light years away and do not actually melt, but slowly dissolve under the influence of the ionizing, ultraviolet radiation of the hot, luminous star γ Cas. Gamma Cassiopeiae is physically only 3-4 light years away from the nebula. In IC 63, which is even closer to the Gamma Cassiopeiae, red H-alpha light, which is radiated when ionized hydrogen atoms rejoins their electrons, dominates. IC 59, which is farther away from the star, shows less H-alpha radiation, but more of the characteristic, blue color of the starlight, which is reflected by the dust.

Comments

Author

Jedi2014
Jens Zippel
License: Attribution-NonCommercial-ShareAlike Creative Commons
3275
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Sky plot

Sky plot

Histogram

Sh2-185 - IC59 - IC63 - Cassiopeia widefield, 





    
        

            Jens Zippel