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Contains:  M 78, NGC 2068, NGC 2067, NGC 2064, NGC 2024, NGC 2023, Horsehead nebula, IC 434, IC 432, NGC 1999, NGC 1990, M 43, NGC 1982, NGC 1977, NGC 1980, M 42, Great Nebula in Orion, NGC 1976, NGC 1975, NGC 1981, IC 423, The star Alnitak (ζOri), The star σOri, The star Alnilam (εOri), The star 45Ori, The star ιOri, The star θ2Ori, The star θ1Ori, The star 42Ori, The star Mintaka (δOri), Part of the constellation Orion (Ori)
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Orion widefield Ha-RGB, 


Orion widefield Ha-RGB

Orion widefield Ha-RGB

Technical card

Imaging telescope or lens:Samyang 135mm f/2 ED UMC

Imaging cameras:ZWO ASI1600MM-CoolSamsung NX500

Mount:Star Adventurer

Guiding telescope or lens:Lunatico Astronomia EZG-50

Guiding camera:QHY5L-II

Software:Pisinsight 1.8Gimp 2.9

Filters:Astronomik Ha 31mm 6nmHOYA Pro1 Digital 77mm MC UV(0)

Accessory:ZWO EFWmini

Resolution: 4510x2696

Dates:Dec. 30, 2016Nov. 1, 2017

Astronomik Ha 31mm 6nm: 75x10" (gain: 200.00) -20C
Astronomik Ha 31mm 6nm: 68x60" (gain: 200.00) -20C
HOYA Pro1 Digital 77mm MC UV(0): 76x15" ISO800
HOYA Pro1 Digital 77mm MC UV(0): 33x60" ISO800
HOYA Pro1 Digital 77mm MC UV(0): 75x90" ISO800

Integration: 4.1 hours

Darks: ~256

Bias: ~256

Avg. Moon age: 6.46 days

Avg. Moon phase: 45.88% job: 1799974

RA center: 84.484 degrees

DEC center: -2.974 degrees

Pixel scale: 6.060 arcsec/pixel

Orientation: 78.549 degrees

Field radius: 4.422 degrees

Locations: Balcon de casa, Vitoria-Gasteiz, Álava, Spain; Puerto de Vitoria, Vitoria, Álava, Spain


This is my past season RGB orion shooted with the Samsung NX500 combined with the Ha shooted early this week with the ASI1600MM-C.

I combined the Ha with the red channel. I believe the orion belt stars (Alnitak, Mintaka and Alniham) are more blue than they are shown in the picture, but I'm unable to correct this without `screw up the color balance of the rest of the image. I dislike also the color of the flame nebula.



License: Attribution-NonCommercial-NoDerivs Creative Commons

Sky plot

Sky plot


Orion widefield Ha-RGB, 



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