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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 - Great Orion Nebula, 





    
        

            Marc
M42 - Great Orion Nebula

M42 - Great Orion Nebula

Technical card

Imaging telescope or lens:TS Photoline 102mm F7 Triplet Apo

Imaging camera:Canon 1000Da

Mount:NEQ6 Pro

Guiding telescope or lens:TS Photoline 102mm F7 Triplet Apo

Focal reducer:TS Photoline 3" Reducer 0.79

Software:PixInsight 1.8

Accessory:MGen Guider

Resolution: 1941x1246

Dates:Feb. 14, 2017Feb. 15, 2017

Frames:
80x180" ISO800
Hutech IDAS CLIP LPS D1: 20x180" ISO800
Hutech IDAS CLIP LPS D1: 30x60" ISO800
IDAS LPS D1: 60x30" ISO800

Integration: 6.0 hours

Darks: ~20

Flats: ~30

Bias: ~40

Avg. Moon age: 18.69 days

Avg. Moon phase: 83.35%

Astrometry.net job: 1467799

RA center: 83.671 degrees

DEC center: -5.284 degrees

Pixel scale: 4.065 arcsec/pixel

Orientation: -92.984 degrees

Field radius: 1.302 degrees

Description

Had a go at this very popular object. A lot of the "higher end" versions of this are combined visual/h-alpha composites - so I was curious to see what a measly DSLR under subpar skies could do. Am quite happy how this turned out - will probably add another session to really bring out the dust surrounding the illuminated gas.

Comments

Author

Lasastard
Marc
License: None (All rights reserved)
2023
Like

Revisions

  • M42 - Great Orion Nebula, 





    
        

            Marc
    Original
  • M42 - Great Orion Nebula, 





    
        

            Marc
    B
  • M42 - Great Orion Nebula, 





    
        

            Marc
    C
  • M42 - Great Orion Nebula, 





    
        

            Marc
    D
  • Final
    M42 - Great Orion Nebula, 





    
        

            Marc
    E

B

Added another 2 hours of integration.

D

Wasn't happy with the darker gas/dust regions (first too orange, than too pale)... maybe this looks better?

E

Improved color calibration, really tough object it seems.

Sky plot

Sky plot

Histogram

M42 - Great Orion Nebula, 





    
        

            Marc