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What is the Full Width at Half Maximum (FWHM) and why is it so important?

There is a measure in astronomy that is called full width at half maximum (FWHM).

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Dynamic Narrowband combinations with Pixelmath

Messier 109

Telescope Focal Ratio Explained

Community Work

Community Work

Creating a Synthetic Flat in PixInsight to Correct Flat Field Errors

Cederblad 116
How to create a synthetic flat in PixInsight to correct flat field errors in your image
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Community Work

How to Enable GPU Acceleration in Pixinsight

How to Enable GPU Acceleration in Pixinsight using Nvidia CUDA GPUs.
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Community Work

The 3 Types of Twilight

Henize 70
The 3 types of twilight; Civil, Nautical and Astronomical
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Community Work

Dark Calibration Frame Scaling

Rho Ophiuchi Complex
When we need to scale dark calibration frames in processing astro image data.
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Community Work

Dithering Explained

NGC 5892
Short primer on dithering
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Bit Depth (Briefly) Explained

NGC 2626
Explainer on Bit Depth
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