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• 16:45, 21 June 2023 Astroadmin talk contribs created page Stacking: DSOs (Created page with "== Why stack? == Stacking increase the signal-to-noise (SNR) ratio of your images. Generally speaking the noise follows fairly predictable patterns and can be removed by the use of calibration frames. This results in a smoother image - a well calibrated image is far easier to process than just a stack of light frames. Generally speaking the more frames you use, the better your image will be. This effect does drop off however, the noise reduction depends on the square ro...") Tag: Visual edit