Orion Nebula, M42

Tyler Cipriani — Sat, 17 Feb 2018 20:34:58 +0000

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This is the Great Orion Nebula, M42. I realized this is fairly easy to see with a sufficient optical boost from my backyard which is roughly Bortle 6/7. This is my second night trying to image this object (or any DSO, actually).

This is a stack of 10x88-second exposures (roughly 15 minutes total exposure time). Polar-alignment on my SkyGuider Pro proved to be a bit difficult (once I added the camera and counter balance I had to re-align), so this 15 minutes is the result of me fiddling for an hour and a half or so. I did all the processing for this photo using libre software. Camera/lens correction in RawTherapee, aligned using align_image_stack in Hugin, average stacking using G’MIC, final stacked image tone curve/RGB curve/saturation adjustments in RawTherapee.

EXIF
ExposureTime	88
FNumber	2.8
Description	This is the Great Orion Nebula, M42. I realized this is fairly easy to see with a sufficient optical boost from my backyard which is roughly Bortle 6/7. This is my second night trying to image this object (or any DSO, actually). This is a stack of 10x88-second exposures (roughly 15 minutes total exposure time). Polar-alignment on my SkyGuider Pro proved to be a bit difficult (once I added the camera and counter balance I had to re-align), so this 15 minutes is the result of me fiddling for an hour and a half or so. I did all the processing for this photo using libre software. Camera/lens correction in RawTherapee, aligned using `align_image_stack` in hugin, average stacking using G’MIC, final stacked image tone curve/RGB curve/saturation adjustments in RawTherapee
Title	Orion Nebula, M42
FocalLength	200.0 mm
CreateDate	2018-02-17 20:34:58
Lens	70-200mm f/2.8
ISO	400
Model	NIKON D610
Make	NIKON CORPORATION

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Orion Nebula, M42