Hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  Great Nebula in Orion  ·  M 42  ·  M 43  ·  NGC 1976  ·  NGC 1980  ·  NGC 1982  ·  The star θ1Ori  ·  The star θ2Ori  ·  The star ιOri
M42 - Orion Nebula, 


            Manfred Fellner
M42 - Orion Nebula
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M42 - Orion Nebula

Technical card

Imaging telescopes or lenses: Lacerta Newton ohne Namen 250/1200

Imaging cameras: ZWO ASI 1600 MM-C

Mounts: SkyWatcher EQ6-R SynScan

Guiding cameras: Lacerta M-Gen II MGEN 2

Software: PixInsight

Filters: Astronomik LRGB 1.25" Type IIc

Accessory: Pal Gyulai f/4 KomaKorrektor

Dates:Oct. 20, 2017Oct. 26, 2017

Astronomik LRGB 1.25" Type IIc: 36x120" (gain: 0.00) -10C bin 1x1
Astronomik LRGB 1.25" Type IIc: 20x30" (gain: 0.00) -10C bin 1x1

Integration: 1.4 hours

Darks: ~30

Flats: ~60

Bias: ~256

Avg. Moon age: 3.39 days

Avg. Moon phase: 18.56%

Bortle Dark-Sky Scale: 6.00

Basic astrometry details

Astrometry.net job: 1792404

RA center: 5h 35' 9"

DEC center: -5° 29' 9"

Pixel scale: 0.656 arcsec/pixel

Orientation: 73.766 degrees

Field radius: 0.496 degrees

Resolution: 1824x1252

Locations: Balkonsternwarte, Klagenfurt, Kärnten, Austria


This was my first attempt to photograph this wonderful object and my second picture with the Asi 1600 mm-cool. The image includes 20x30s luminance and 12x120 RGB subframes. By the way, I am very impressed by the low read-out noise of this great camera. It makes the image processing much easier.


Sky plot

Sky plot


M42 - Orion Nebula, 


            Manfred Fellner