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Contains:  IC 1805
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One Chamber of The Heart, 


            Kevin Morefield
One Chamber of The Heart

One Chamber of The Heart

Technical card

Imaging telescope or lens:Planewave CDK14

Imaging camera:SBIG STX 16803

Mount:Paramount ME II

Guiding telescope or lens:Planewave CDK14

Guiding camera:SBIG STX 16803

Software:CCDWare CCDStack 2Adobe Photoship CCCCDWare CCDAutoPilot 5

Resolution: 4057x3927

Dates:Oct. 18, 2017

Frames: 99x1200"

Integration: 33.0 hours

Avg. Moon age: 28.28 days

Avg. Moon phase: 1.75% job: 2024651

RA center: 38.907 degrees

DEC center: 61.508 degrees

Pixel scale: 0.729 arcsec/pixel

Orientation: 60.643 degrees

Field radius: 0.572 degrees

Locations: Sierra Remote Observatory, Auberry, California, United States

Data source: Own remote observatory

Remote source: Sierra Remote Observatories


Some great advice from a long time imager finally gave me the mix I was looking for on this nebula. Rather than a SHO mix, I added 33% Ha to the OIII and 33% Ha to the SII and then mixed the two resulting images to use for the green channel. This was used for the color data while a straight Ha was used for Luminance.

Processed in CCDStack and Photoshop. A light deconvolution of the Ha was done in CCDStack. limited noise reduction using Topaz. Some further sharpening with Smart Sharpen. Luminance and star masks in Photoshop controlled these enhancements. Oh, also a 1 pixel minimum filter on the stars.

Ha 28, Sii 35, Oiii 36 all 20 minute subs. Total time 33 hours.



Kevin Morefield
License: None (All rights reserved)

Sky plot

Sky plot


One Chamber of The Heart, 


            Kevin Morefield