sex man page

sex — extract a source catalogue 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


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

Reporting Bugs

Please report bugs to the SExtractor software forum at

See Also

eye(1), missfits(1), psfex(1), scamp(1), sky(1), stiff(1), stuff(1), swarp (1), ww(1)


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


SExtractor is licensed under the terms of the General Public License (GPL), version 3.

Referenced By

psfex(1), scamp(1), swarp(1).

February 2016 SExtractor 2.19.5 User Commands