Sequator is a free software which can track stars on multiple images, align stars and stack them.

If you don't have an equatorial mount, by stacking non-blur star images in short-time exposures, the result will be almost similar to long-exposure on an equatorial mount. However, Sequator can control the exposure properly by auto-brightness or HDR-mode output, in 16-bit TIFF for further post processing. Additionally average random noises, rather than over-exposed on a physical equatorial mount.
  • Easy; user friendly
  • Fast
  • Automatic determination for best parameters
  • Capable under heavy light pollution
  • Powerful correction for wide-angle & complex distortions
  • Intelligent sky mask
  • Foreground detection & stacking
  • Star light enhancement function
  • Light pollution reduction function
  • Support star trails mode
  • Batch processing for time-lapse
  • Support RAW & 16-bit TIFF
Sequator will not provide too many confusing options; in contrast, strictly select the most effective features for you. Endeavor to automatically determine best parameters, save the time from boring trials. "Simple but powerful", is the core philosophy of Sequator.

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