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Hemisphere:  Southern  ·  Contains:  NGC 2359, NGC2359, Sh2-298
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Thor's Helmet Bi-color/SHO hybrid, 


            Kevin Morefield
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Thor's Helmet Bi-color/SHO hybrid

Imaging telescopes or lenses: Planewave CDK14

Imaging cameras: SBIG STX 16803

Mounts: Paramount ME II

Guiding telescopes or lenses: Planewave CDK14

Guiding cameras: SBIG STX 16803

Software: CCDWare CCDAutoPilot 5  ·  Adobe Photoship CC  ·  CCDWare CCDStack 2

Dates:Dec. 12, 2017

Frames: 82x1200"

Integration: 27.3 hours

Avg. Moon age: 24.26 days

Avg. Moon phase: 28.29% job: 3439476

RA center: 7h 18' 32"

DEC center: -13° 13' 47"

Pixel scale: 0.728 arcsec/pixel

Orientation: -57.023 degrees

Field radius: 0.335 degrees

Resolution: 2567x2095

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

Data source: Own remote observatory

Remote source: Sierra Remote Observatories


Thor's Helmet shines strongest in the OIII channel which allows for some non-conventional processing. I was thinking bi-color and shot 20 OIII and 45 Ha, but then added 17 SII later to see if it would help. The SII was too weak to stand on it's own so I added the Ha and SII together 3:1. I used the Ha+SII for Red, Ha+OIII for Green, and just OIII for Blue. So it's sort of an SII enhanced Bi-color.

Subs were all 20 minutes for a total time of about 27 hours.

Processing was in CCDStack and Photoshop. Sharpened with Unsharpmask and noise reduction in Topaz de-noise.



Kevin Morefield
License: None (All rights reserved)


    Thor's Helmet Bi-color/SHO hybrid, 


            Kevin Morefield
  • Final
    Thor's Helmet Bi-color/SHO hybrid, 


            Kevin Morefield


Description: Still using the data loss as an opportunity to improve images! LAB color adjustments, Star reduction, clean-up.

Sky plot

Sky plot


Thor's Helmet Bi-color/SHO hybrid, 


            Kevin Morefield