These are screenshots of GCCD
, the Gnome CCD camera
imaging application. These are from version 0.3. Later versions
may differ slightly from these images.
The Main Image View
This shows off the MDI interface of the image view. The tabs positions
are setable throught the Gnome Control Panel or through the View menu.
Each image can get its own top level window in another mode.
If an image has color information associated with it from a filter or if
it is a one-shot color camera, it can be simulated in the main view. One-shot
color cameras will use the color matrix to add color to the displayedimage.
The CCD Camera Control Panel
The CCD Control Panel is where you interact with your astronomical hardware.
To reduce screen real-estate required by the panel, a tabbed interface to
the main features of the panel is used. Features that are accessable at all
times are always visible. The integration time, camera and telescope control
are always available.
The basic exposure options are set in this panel. Binning, calibration,
multiple frame combinations, and image name can be set here.
Focusing and location objects are always more difficult than they should
be. This panel is meant to help in these tasks. The reticule
window can be binned and enlarged to help reach critical focus quickly. The
histogram with min/max give quantitative feedback. Because theCCD is
windowed, only those pixels required for the display are downloaded to increase
Guiding is a requirement for long exposure imaging. A seperate camera
can be attached (such as a cheap web-cam) for guiding purposes. Alternatively,
some models from Starlight Xpress can use a feature of their interline CCD
and guide themselves. Half the CCD is used for imaging, the other for
guiding. Exposure times need to be doubled to make up for the loss
in sensitivity. If there is an interface to your telescope such as
an LX200 serial interface or Starlight Xpress STAR 2000 guider interface,
GCCD will automatically send tracking corrections to the telescope. If
not, the telescope control arrows will still be activated so you can follow
along and apply manual corrections.
TrueTechnologies Custom Filter wheel is supported. Each filter can
receive a name, exposure % multiplier, and an associated flat field. Individual
filters can be selected for a sequence and then automatically applied to
the exposure. Each exposed frame will get the filter name appended
to the image name and the main image view will render the frame in the given
The Misc Values panel is just a list of variables that can be modified to
affect some of the internal algorithms. Usually they can be left at
their default values.