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Contains:  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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M42 - Orion Nebula, 


            Sergio G. S.

M42 - Orion Nebula

Technical card

Imaging telescope or lens:Celestron C11 Edge HD

Imaging camera:ZWO ASI071MC- PRO

Mount:iOptron CEM60

Guiding telescope or lens:Orion Deluxe 50mm MiniGuider

Guiding camera:Orion Starshoot autoguider

Focal reducer:Starizona Hyperstar 3 C11


Filter:Optolong 2" UV/IR Cut

Resolution: 2445x1614

Dates:Dec. 10, 2018

Optolong 2" UV/IR Cut: 20x10" -12C bin 2x2
Optolong 2" UV/IR Cut: 19x120" -12C bin 2x2

Integration: 0.7 hours

Darks: ~20

Flats: ~20

Flat darks: ~20

Bias: ~20

Avg. Moon age: 2.95 days

Avg. Moon phase: 9.50%

Bortle Dark-Sky Scale: 5.00

Temperature: 22.00 job: 2465689

Locations: TUGA Observatory, Porto Feliz, SP, Brazil

Data source: Own remote observatory

Remote source: Non-commercial independent facility


Tried again the Orion Nebula, I think it's the fourth time and every time is a different challenge, I enjoy it very much and it's one of my favourite targets. I tried short exposures to avoid saturation on the trapezium region and then longer exposures to try and get as much signal as possible. The colors are balanced at taste. I personally try to go for a natural look, so I didn't crank the saturation. I hope you enjoy. Comments are welcome.



Sergio G. S.
License: Attribution-NonCommercial-NoDerivs Creative Commons


  • M42 - Orion Nebula, 


            Sergio G. S.
  • Final
    M42 - Orion Nebula, 


            Sergio G. S.


Slight color balance towards blue on highlights


M42 - Orion Nebula, 


            Sergio G. S.