.FITS File Extension

Flexible Image Transport System File

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What is a FITS file?

Bitmap graphic created in the FITS (Flexible Image Transport System) format, which was originally specified by the International Astronomical Union (IAU); may contain both binary data and ASCII text; used as a standard format for storing astronomical data.

More Information

FITS files are often used to save captured frames from telescope observations.

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Programs that open FITS files

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