Hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  Great Orion Nebula  ·  Lower Sword  ·  M 42  ·  M 43  ·  Mairan's Nebula  ·  NGC 1976  ·  NGC 1977  ·  NGC 1980  ·  NGC 1982  ·  Orion Nebula  ·  The star 42Ori  ·  The star 45Ori  ·  The star θ1Ori  ·  The star θ2Ori  ·  The star ιOri  ·  the Running Man Nebula
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M42 Nebula, mainly the central part, a color image, CPH, Denmark, 


            Niels V. Christensen
M42 Nebula, mainly the central part, a color image, CPH, Denmark
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M42 Nebula, mainly the central part, a color image, CPH, Denmark

Technical card

Imaging telescopes or lenses: WO FLT-110 WO

Imaging cameras: zwo asi 071MC PRO ZWO

Mounts: Milburn Wedge Wedge mounted on a pole

Guiding telescopes or lenses: Individual ED70mm Individual

Guiding cameras: SBIG ST-i SBIG  ·  loadstar II Lodestar Autoguider

Software: PixInsight PinInsight  ·  PHD2  ·  The SkyX Pro, CCDStack2, RegiStar, PS. Diff. SW products

Filters: Optolong L-eNhance 2" Optlong L-Enhance

Accessory: Meade on wedge

Dates:Feb. 10, 2021Feb. 11, 2021Feb. 12, 2021Feb. 13, 2021

Frames:Optolong L-eNhance 2" Optlong L-Enhance: 51x300" bin 1x1

Integration: 4.2 hours

Avg. Moon age: 14.97 days

Avg. Moon phase: 1.43%

Bortle Dark-Sky Scale: 6.00

Basic astrometry details

Astrometry.net job: 4224513

RA center: 5h 34' 51"

DEC center: -5° 24' 39"

Pixel scale: 3.853 arcsec/pixel

Orientation: 25.463 degrees

Field radius: 0.906 degrees

Resolution: 1356x1014

Locations: Home observatory, Copenhagen, DK-2270 Kastrup, Denmark

Data source: Backyard


4 nights of exposures in Febr-2021, 51x300sec subs were used to process this WF M42 color image.
The trapez area was taken from this image, https://astrob.in/z6ohnl/0/

It's taken as a piggi-back on my 16" SCT, where a WO FLT-110 F7 refractor and a ZWO asi071MC camera is mounted.
A Baader 2" Optolong L-eNhance filter was also used.
The subs were only calibrated with darks.

My home build observatory is placed in my front yard/in the "red light" pollution zone, have a look here,
Red Zone

Kind regards Niels