Starry Sky Stacker is for pictures of the sky, with no foreground, taken with a tracking device so that the stars do not move within the frame. Starry Sky Stacker can substantially reduce both shot noise and fixed-pattern noise in the final image, and correct for vignetting and other lens and sensor defects. It computes 5 compositions of the selected images simultaneously allowing the user to easily choose which compositions to use. It uses a proprietary alignment algorithm that produces excellent results It is simpler and easier to use than most stacking programs
Key advantages of Starry Sky Stacker are: Instructions for using Starry Sky Stacker are here. See Restrictions and Requirements).Īligns the images to compensate for errors in tracking,Īssigns a quality estimate to each image,Īllows the user to select images based on the quality estimate or manually and,Ĭombines the images using four different algorithms (median with outlier rejection, mean with outlier rejection, max, min). Astronomical cameras that use monochrome sensors with filters are not supported. Images must be RAW (from a supported camera), TIFF or JPEG. (Note that alt-azimuth mounts are not suitable for use with Starry Sky Stacker because the stars appear to rotate within the frame both during and between exposures).
Starry Sky Stacker requires that an equatorial mount that ensures that stars move very little either during or between exposures is used during capture. The reduction in noise comes from combining a sequence of identical exposures into a single image.
Starry sky download free mac#
Starry Sky Stacker is a Mac application that reduces noise in pictures of the night sky.
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