Signal-to-noise ratio in amateur astrophotography
An introduction to the nature of noise, signal-to-noise ratio, and the capture and calibration techniques used to improve astronomical images.
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Articles
Astrophotography experiences, techniques and procedures.
Mapping active regions of the Sun with PixInsight
A procedure for accurately representing active regions of the Sun and aligning solar photographs with heliographic coordinates.
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Masks in PixInsight
A practical introduction to masks in PixInsight, including methods for creating luminance, star, color and gradient masks and applying selective adjustments.
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Stacking with PixInsight
A practical guide to calibrating, registering and stacking astronomical images with PixInsight's WeightedBatchPreProcessing (WBPP) script.
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Calibration frames: bias, darks, flats and dark flats
An introduction to the calibration frames used in astrophotography, the noise or defect corrected by each type, and the conditions required to capture them correctly.
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