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Contains:  41 the01 Ori, 42 c Ori, 43 the02 Ori, 44 iot Ori, 45 Ori, De Mairan's nebula, Great Nebula in Orion, Hatysa, M 42, M 43, M43, NGC 1973, NGC 1975, NGC 1976, NGC 1977, NGC 1980, NGC 1981, NGC 1982, NGC1973, NGC1975, NGC1977, NGC1980, NGC1981, Sh2-279, Sh2-281, The star 42Ori, The star 45Ori, The star θ1Ori, The star θ2Ori, The star ιOri
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M42 : Great Orion Nebula, 



    
        

            Tristan Campbell
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M42 : Great Orion Nebula

Technical card


Dates:Dec. 1, 2019Jan. 23, 2020

Frames:
Baader f/2 Highspeed 2" H-Alpha Filter: 60x60"
ZWO 1.25" Halpha: 119x300"
ZWO LRGB, 1.25": 247x120"

Integration: 19.1 hours

Darks: ~50

Flats: ~50

Avg. Moon age: 16.53 days

Avg. Moon phase: 13.23%

Bortle Dark-Sky Scale: 5.00


Astrometry.net job: 3202579

RA center: 5h 36' 1"

DEC center: -5° 12' 9"

Pixel scale: 2.945 arcsec/pixel

Orientation: -25.025 degrees

Field radius: 1.463 degrees


Resolution: 2800x2222

Locations: Home, Harrogate, North Yorkshire, United Kingdom

Data source: Backyard

Description

First light of my new RASA 8 scope. There was only a brief 2 hour clear period last night and I managed to get 60 mins of HA which I've integrated into an image taken with the Esprit 80. The HA for 1 hour with the RASA has more nebulosity than 10 hours on the Esprit (though the Esprit data had lower gain settings so not best comparison). Ideally this needs far more RGB and HA for better image quality but could not resist a quick first experiment with new kit.

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Author

AbsolutelyN
Tristan Campbell
License: None (All rights reserved)
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M42 : Great Orion Nebula, 



    
        

            Tristan Campbell