M42 - The Orion Nebula

@KingRandomGuy to

AstrophotographyEnglish • 7 months ago

Equipment details:

Mount: OpenAstroMount by OpenAstroTech
Lens: Sony 200-600 @ 600mm f/7.1
Camera: Sony A7R III
Guidescope: OpenAstroGuider (50mm, fl=163) by OpenAstroTech
Guide Camera: SVBONY SV305m Pro
Imaging Computer: ROCKPro64 running INDIGO server

Acquisition & Processing:

Imaged and Guided/Dithered in Ain Imager
420x30s lights, 40 darks, 100 flats, 100 biases, 100 dark-flats over two nights
Prepared data and stacked in SiriLic
Background extraction, photometric color calibration, generalized hyperbolic stretch transform, and StarNet++ in SiriLic
Adjusted curves, enhanced saturation of the nebula and recombined with star mask in GIMP, desaturated and denoised background

This is my first time doing a multi-night image, and my first time using SiriLic to configure a Siril script. Any tips there would be helpful. Suggestions for improvement or any other form of constructive criticism are welcome!

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@lefty7283M
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English
2•7 months ago
If I’m shooting just one filter I usually dither every 4 frames, but most of the time I loop LLLRRGGBB > dither or HaHaOiiiOiiiSiiSii> dither. Imo dithering every 2 frames is a lot as you’ll spend a lot of time waiting for it to settle and not actively imaging.

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