IC 1795 in Cassiopeia

CLICK ON IMAGE FOR FULL SIZE VIEW (2400 x 1800)

Scope: ES "Levy" Mak-Newt MN152 at f/4.8,  Blair Valley, Anza Borrego Desert, CA,  21 October 2011, Camera: ST8300M

Exposure: 15 x 10 minutes H-Alpha (1x1 bin),  10 x 5 minutes UV/IR Block (1x1 bin), 8 x 4 minutes RGB Exposures (2x2 bin) 

Processing: Images were captured with CCDSoft. Aligned/stacked and dark subtracted in Astroart ; Sigma Combine method was used for stacking subs.  All channels were scaled and rough color balanced in Astroart.  Central Gradient removal  was done in Astroart. Channels were co-registered in Astroart.   The 9 minute 1x1 bin H-Alpha  exposures  were  blended with 5 minute UV/IR Block exposures (40% lighten)  for the main luminance construction. Level adjustments and curves were used to bring out object features.  LRGB combine was done in Photoshop.   Selective Color adjustment performed on Reds and Magentas. A light background noise reduction and selective sharpening was applied  to the LRGB image.   Final touches and color balance in Photoshop. Final Image size is approximately 3252x2532 (cropped and resized to 2400x1800).

North is up in this image. This is an object cataloged as IC 1795 and is located in the Constellation of Cassiopeia.  This region is also referred to occasionally as NGC 896. I This area is an emission nebula complex part of a much larger emission complex known as the "Heart Nebula". This image replaces an earlier image that can be seen in the Archives here .   The Horizontal FOV is 54'.

Image center is located approximately - Equatorial 2000: RA: 02h 26m 12s Dec: +61°53'31"

All images and content remain the property of Jim Thommes - copyright 2003 - 2012

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