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FITS files are astronomical

FITS files are astronomical RAWs; they are used by astronomy camera manufacturers ZWO, QHY etc. to store shooting data and metadata (bayer grid etc.). they are normally treated only by astronomical software and therefore must be opened separately in order to be seen; Generally we astrophotographers produce many dozens of files for a single subject and we usually have to filter the good from the bad. It is really long and annoying to open every single shot to see, for example, if there are trails of satellites, which ruin the shot.
some groups have interpreted this format in preview but you must always have a separate software (example Quicklook with appropriate plugin
it would therefore be interesting to integrate this encoding into LibRaw.

astronomical User