Orion's Belt and Messier 42 (Brendan Studds)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: Flame Nebula · Great Orion Nebula · IC 426 · IC 431 · IC 432 · IC 434 · Lower Sword · M 42 · M 43 · Mairan's Nebula · NGC 1975 · NGC 1976 · NGC 1977 · NGC 1980 · NGC 1981 · NGC 1982 · NGC 2023 · NGC 2024 · Orion B · Orion Nebula · Part of the constellation Orion (Ori) · The star 31Ori · The star 42Ori · The star Alnilam (εOri) · The star Alnitak (ζOri) · The star Mintaka (δOri) · The star ηOri · The star θ2Ori · The star ιOri · The star σOri · And 2 more.

Orion's Belt and Messier 42, Brendan Studds

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Orion's Belt and Messier 42

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Orion's Belt and Messier 42

Imaged Orion over two nights at off of a tripod in my backyard. Not tracking still so manually adjusting the framing every so often. I think the widely inconsistent framing causes DSS to drop a lot of frames during stacking (only about 155 frames were included in the final stack).

Used my Nikon D5600, at Nikkor 18-140mm ED. Exposures were f/5 at 3" with 70mm f/l

First night was the 2020/03/27 - 94 light, 11 flats, 25 darks, and 25 bias frames

Second night 2020/03/31 - 161 lights, 50 darks, 50 bias (30 flats taken but I forgot to process with them).

Total integration of (155 images) 465s / 7min 45s

Stacked using DSS, post precessing in SiriL and GIMP.

Siril

- background neutralisation, colour calibration, SCNR (green)

GIMP

- Histogram stretch (forgot to do this in SiriL),

- split to color channels, apply noise reduction to red channel and remerge channels

- need to re-colour calibrate

- Remove background gradient

- Remove tree shadow from bottom of image

Original
Final
B

Southern Hemisphere Astro

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Orion's Belt and Messier 42

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Orion's Belt and Messier 42

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