extract a source catalog from an astronomical FITS image


sex - extract a source catalog from an astronomical FITS image


sex image [-c configuration-file]

[-parameter1 value1 -parameter2 value2 ...]
sex image_detect image_measure [-c configuration-file]
[-parameter1 value1 -parameter2 value2 ...]
sex -d


SExtractor is a program that builds a catalogue of objects from an astronomical image. Although it is particularly oriented towards reduction of large scale galaxy-survey data, it performs rather well on moderately crowded star fields. See for more details.

Operation modes:

-h, --help
print this help, then exit
-V, --version
print version number, then exit
-d, --dump
dump a default configuration file


Written by Emmanuel Bertin (Institut d'Astrophysique de Paris and Observatoire de Paris).

Copyright 1994-2005 Emmanuel Bertin This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Reporting Bugs

Report bugs to <>.

See Also


The full documentation for SExtractor is maintained as a Postscript manual available at

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