The GCX project
GCX is an astronomical
image processing and photometry application written in C using Gtk+-1.2,
and provided under the Gnu General Public License. It was
tested on Linux, FreeBSD and OS/X (using the X Window System).
An introduction to the
program can be read here.
The User's Manual can be browsed online in
html format, or downloaded as a pdf. Generally, the version in the source or binary packages
is the latest.
GCX is distributed in
source code; check the manual for build information.
Starting from version 0.9.7, experimental Debian and rpm binary packages
have been created. The author would like to hear about failures to install
those on your system.
The related cpx3m CCD
camera project page is located here. Also
check the filter wheel
project and cpxctrl, the camera server used by gcx; the current
version supports cpx3m cameras.
For results using test images with synthetic stars,
check this page.
The project is listed on freshmeat at http://freshmeat.net/gcx. To receive
news of new releases, you can subscribe there.
Screenshots (click on image for
Worst-case differential airmass
graph and discussion.
A table of estimated scintillation noise values for various
airmasses, telescope apertures and integration times.
Starting with version 0.9.7, the test data directory has been taken out
of the source release, and can be downloaded from the link below. The program
in source form as well as prebuilt .deb and .rpm i386 packages can be downloaded
from the sourceforge project
page. The latest version of the manual is also included in those packages.
Source tree of the camera server.
A few useful object catalogs in edb format.
code distribution, including documentation and example data.