Celestial hemisphere:  Southern  ·  Constellation: Canis Major (CMa)  ·  Contains:  LBN 1041  ·  NGC 2359  ·  Sh2-298
Thor's Helmet 3nm Ha/Oiii EdgeHD11 f/10 - no processing just stretch, Freestar8n
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Thor's Helmet 3nm Ha/Oiii EdgeHD11 f/10 - no processing just stretch

Thor's Helmet 3nm Ha/Oiii EdgeHD11 f/10 - no processing just stretch, Freestar8n
Powered byPixInsight

Thor's Helmet 3nm Ha/Oiii EdgeHD11 f/10 - no processing just stretch

Equipment

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Acquisition details

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Description

Thor's Helmet in 3nm Ha/Oiii with EdgeHD11 f/10 and ASI1600MM Pro on CGX-L OAG guided by MetaGuide.  0.28" pixels native, downsampled 70%.

103 x 5m exposures total.

Deterministic colors based on perceptual mapping of Ha, HBeta and Oiii, with downscaling of the Oiii channel by a factor of 0.2x so the green is balanced with the red/blue.

No processing other than levels stretch in PS6 and crop.

Image acquisition, autofocus, calibration and stacking with custom C++/Python software.

Comments

Sky plot

Sky plot

Histogram

Thor's Helmet 3nm Ha/Oiii EdgeHD11 f/10 - no processing just stretch, Freestar8n