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Contains:  NGC 1999, M 43, NGC 1982, NGC 1977, NGC 1980, M 42, Great Nebula in Orion, NGC 1976, NGC 1975, NGC 1981, NGC 1973, The star 45Ori, The star ιOri, The star θ2Ori, The star θ1Ori, The star 42Ori
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Orion in Ha-NIR (mono + Red), 


            Andreas Dietz
Orion in Ha-NIR (mono + Red)

Orion in Ha-NIR (mono + Red)

Technical card

Resolution: 1949x1581

Dates:March 6, 2016Dec. 26, 2017

Baader Planetarium Ha 2" 7nm: 79x30" ISO25600
Heliopan Infrared RG-780: 320x30" ISO400

Integration: 3.3 hours

Avg. Moon age: 17.08 days

Avg. Moon phase: 30.26% job: 1880888

RA center: 83.528 degrees

DEC center: -5.395 degrees

Pixel scale: 7.597 arcsec/pixel

Orientation: 1.093 degrees

Field radius: 2.648 degrees

Locations: Home Observatory, Regensburg, Bavaria, Germany

Data source: Backyard


And finally here is another version of my previously posted Ha-NIR image of M42 and friends. I'm just learning a completely new (for me) imaging technique and I'm trying new ways of image processing.
In this version I tried to emphasize the hidden or barely visible stars with a spectrum peak beyond the VIS spectrum. It's really interesting that there are several stars appearing in NIR!

Pixel math:
R = MAX(Ha, NIR)
G = Ha
B = Ha

Enjoy it!



Andreas Dietz
License: Attribution-ShareAlike Creative Commons


  • Final
    Orion in Ha-NIR (mono + Red), 


            Andreas Dietz
  • Orion in Ha-NIR (mono + Red), 


            Andreas Dietz


image crop to some IR-only stars

Sky plot

Sky plot


Orion in Ha-NIR (mono + Red), 


            Andreas Dietz