Hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  41 the01 Ori  ·  42 c Ori  ·  43 the02 Ori  ·  44 iot Ori  ·  45 Ori  ·  De Mairan's nebula  ·  Great Orion Nebula  ·  Hatysa  ·  Lower Sword  ·  M 42  ·  M 43  ·  M43  ·  Mairan's Nebula  ·  NGC 1973  ·  NGC 1975  ·  NGC 1976  ·  NGC 1977  ·  NGC 1980  ·  NGC 1981  ·  NGC 1982  ·  NGC1973  ·  NGC1975  ·  NGC1977  ·  NGC1980  ·  NGC1981  ·  Orion Nebula  ·  Sh2-279  ·  Sh2-281  ·  The star 42Ori  ·  The star 45Ori  ·  And 5 more.
Getting plate-solving status, please wait...
M42 The Great Nebula in Orion, 



    
        

            Eshan Toorabally
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M42 The Great Nebula in Orion

Getting plate-solving status, please wait...
M42 The Great Nebula in Orion, 



    
        

            Eshan Toorabally
Powered byPixInsight

M42 The Great Nebula in Orion

Imaging telescopes or lenses: William Optics ZENITHSTAR 73 APO

Imaging cameras: ZWO ASI 1600 MM Pro

Mounts: iOptron CEM25P

Guiding telescopes or lenses: ZWO Off Axis Guider

Guiding cameras: ZWO ASI 120 MM

Focal reducers: William Optics Flat 73

Software: Stefan Berg (aka Isbeorn) NINA - Nighttime Imaging ‘N’ Astronomy  ·  Astro Pixel Processor  ·  PixInsight  ·  Open PHD Guiding PHD2 2.6.5dev1

Filters: Astrodon Ha 5nm 36mm  ·  Astrodon R Gen.2 E-series 36mm  ·  Astrodon G Gen.2 E-series 36mm  ·  Astrodon B Gen.2 E-series 36mm  ·  Astrodon L Gen.2 E-series 36mm

Accessory: Minix N42-C  ·  Lakeside Astro Focuser  ·  ZWO EFW 7 x 36mm


Dates:Oct. 23, 2019Dec. 3, 2019Dec. 4, 2019Jan. 17, 2020Jan. 18, 2020Jan. 19, 2020

Frames:
Astrodon B Gen.2 E-series 36mm: 128x30" (1h 4') (gain: 139.00) -15C bin 1x1
Astrodon G Gen.2 E-series 36mm: 79x30" (39' 30") (gain: 139.00) -15C bin 1x1
Astrodon Ha 5nm 36mm: 15x300" (1h 15') (gain: 200.00) -15C bin 1x1
Astrodon L Gen.2 E-series 36mm: 131x30" (1h 5' 30") (gain: 76.00) -15C bin 1x1
Astrodon L Gen.2 E-series 36mm: 20x5" (1' 40") (gain: 76.00) -15C bin 1x1
Astrodon R Gen.2 E-series 36mm: 80x30" (40') (gain: 200.00) -15C bin 1x1

Integration: 4h 45' 40"

Darks: ~25

Flats: ~25

Flat darks: ~25

Avg. Moon age: 17.99 days

Avg. Moon phase: 40.32%

Bortle Dark-Sky Scale: 7.00


Astrometry.net job: 4311590

RA center: 5h 35' 5"

DEC center: -5° 17' 25"

Pixel scale: 0.887 arcsec/pixel

Orientation: -0.176 degrees

Field radius: 1.209 degrees


Resolution: 5689x7972

Locations: Home, London, United Kingdom

Data source: Backyard

Description

I had this data on my hard drive for a while - I collected M42 photons about a year ago almost as a side project, in between subs of other DSOs I was capturing at the time. Which is why the dates are quite spread out!

The core is blown as usual for me on this object...next time will need more than the 20 5 second Lum subs I tried to incorporate for a HDR image! I also only used my Ha data in a 30% weighting in the Red channel, because the Ha image was very blown out! Nothing added to Lum.

Thank you for looking!

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  • M42 The Great Nebula in Orion, 



    
        

            Eshan Toorabally
    Original
  • Final
    M42 The Great Nebula in Orion, 



    
        

            Eshan Toorabally
    B

B

Description: Adjusted for crop and framing

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M42 The Great Nebula in Orion, 



    
        

            Eshan Toorabally