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Contains:  Great Nebula in Orion, Horsehead nebula, IC 2118, IC 434, M 42, NGC 1976, NGC 1981, NGC 1990, NGC 2024, Part of the constellation Eridanus (Eri), Part of the constellation Lepus (Lep), Part of the constellation Orion (Ori), The star Alnilam (εOri), The star Alnitak (ζOri), The star Bellatrix (γOri), The star Betelgeuse (αOri), The star Cursa (βEri), The star Mintaka (δOri), The star Rigel (βOri), The star Saiph (κOri), The star ηOri, The star ιOri, Witch Head nebula
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Orion Constellation in H-alpha, 



    
        

            JDJ
Orion Constellation in H-alpha
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Orion Constellation in H-alpha

Technical card

Imaging telescopes or lenses: Nikon 50 f/1.8G

Imaging cameras: Nikon D5300 Full Spectrum Modified

Mounts: Celestron AVX Mount

Guiding telescopes or lenses: Agena Astro Guidescope, 50mm f/3.8, 190 mm focal length

Guiding cameras: ZWO ASI120MC-S

Software: PixInsight 1.8

Filters: Optolong L-eNhance 2"


Dates:Dec. 24, 2019

Frames: 43x90"

Integration: 1.1 hours

Avg. Moon age: 27.78 days

Avg. Moon phase: 3.44%


Basic astrometry details

Astrometry.net job: 3150946

RA center: 5h 34' 41"

DEC center: -0° 22' 19"

Pixel scale: 15.615 arcsec/pixel

Orientation: 2.337 degrees

Field radius: 15.686 degrees


Resolution: 4016x6016

Locations: Home, Silver Spring, Maryland, United States

Data source: Backyard

Description

What a great time of year for a few clear nights! With the winter constellations in full view and some time off from work, it was a real bonus to have a few clear nights last week. Captured the constellation of Orion in H-alpha on the night of December 24, 2019 with my old 'nifty fifty' camera lens. Plan to use this data to also generate an NBRGB version of the previous posting of Orion.

Imaged with 50mm Nikon at F/4, Optolong Lenhance dual narrowband filter (mounted to the front of the lens with a step ring), and full spectrum modified Nikon D5300.

Pre-processed using PixInsight Batch Pre-Processing (BPP) script. Images calibrated using darks, bias, and flats. Extracted red/green/blue channels using BatchChannelExtraction script. Registered and stacked using StarAlighment and Integration. Total integration time of ~1 hours using 43 subs at ISO1600x90 sec. Post-processed in Pixinsight: Cropped, gradient removal with ABE, MLT for noise reduction, masked stretch, TGVDenoise for noise reduction, and morphological transformation.

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Author

JDJ
JDJ
License: None (All rights reserved)
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Orion Constellation in H-alpha, 



    
        

            JDJ