A link to my blog for more information and images:
http://astroanarchy.blogspot.fi/2012/12/the-ghost-of-christmas-past-ic-63.htmlIC 59 and IC 63 at the distance of about 600 light years in the constellation Cassiopeia.
Image spans about 0,8 degrees vertically, that's about ten light years at its estimated distance.
IC 59 is at left edge of the image and IC 63 at middle. Nebulae are ionized from the ultraviolet radiation of hot, luminous star gamma Cas at upper right it locates only three to four light years from the nebulae.
A link to my blog for more information and images:
http://astroanarchy.blogspot.fi/2012/12/a-cosmic-fertilization.htmlC 63 is a combination of emission and reflection nebulae. Since this is a narrow band image, reflection component is not get captured due to a broad band nature of it. Instead there is an ionized Oxygen, O-III, in this image and it can be seen as a Blue.
Nebula is next to the Gamma Cassiopeiae, a bright, mag. 2.47, star in middle of the "W" asterism in constellation Cassiopeia.
Technical dataProcessing work flow:
Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack2.
Levels, curves and color combine in PS CS3.
Optics, Meade LX200 GPS 12" @ f5
Camera, QHY9
Guiding, SXV-AO, an active optics unit, and Lodestar guide camera 8Hz
Image Scale, ~0,8 arc-seconds/pixel
Exposures from 02.10.2010
H-alpha 6x1200s, binned 1x1
O-III 1x1200s, binned 3x3
S-II 2x1200s, binned 3x3
Exposures from 24.12.2012
H-alpha 12x1200s, binned 1x1
Total exposre time 7h