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Free software for stacking images.

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Hi' Beside Deep Sky Stacker do anyone know of a free software in which i can use to stack images with Thanks.Mark

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Just released new ASTAP, Astrometric STAcking Program ß0.07


ASTAP is a free stacking program for deep sky images. This program can view and stack astronomical FITS images using an astrometric solution. It uses local Astrometry.net or PlateSolve2 to find the astrometric solution. With the solution the astronomical position of each pixel can be calculated. 

Main features:

  1. Stacking images including Dark Frame and Flat Field correction
  2. Filtering of deep sky images based on HFD value and average value.
  3. Automatic call to Platesolve2 for the astrometric solution.
  4. FITS viewer with swipe functionality.
  5. Results can be saved to 16 bit or float (-32) FITS file
  6. Export to 16 or 32 bit integer TIFF files, grayscale or color or simple PNG or JPEG.
  7. Mosaic building covering large areas using the astrometric linear solution.
  8. Some pixel math functions and digital development process







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You can take a look to Siril that is opensource. Then it is now working on Linux, FreeBSD, OS X and Windows.

You can process DeepSky and planetary images (and / or videos).


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