You can use KStars to generate an image of the sky without actually launching the GUI portion of the program. To use this feature, start KStars from a command prompt using arguments to specify the filename for the image, as well as the desired image dimensions:
kstars --dump [--filename
"4 July 1976
If no filename is specified, it generates a file
kstars.png. It will attempt to
generate an image that matches the extension of your filename.
The following extensions are recognized: “png”,
“jpg”, “jpeg”, “gif”,
“pnm”, and “bmp”. If the filename
extension is not recognized, it defaults to the
PNG image type.
Likewise, if the image width and height are not specified, they default to 640 and 480, respectively.
By default, KStars will read in the options values stored in
to determine where the image will be centered, and how it is
rendered. This means you need to run KStars in normal GUI
mode, and exit the program when it is set up with the desired
options for the generated images. This is not very flexible,
so we also provide the ability to execute a KStars
D-Bus script to set the scene before
generating the image. The filename you specify as the
script argument should be a valid KStars
D-Bus script, such as one created with the
Script Builder Tool.
The script can be used to set where the image is pointing,
set the geographic location, set the time and date, change the
Zoom level, and adjust other view options. Some of the
D-Bus functions make no sense in non-GUI
mode (such as
waitForKey()); if these
functions are encountered while parsing the script, they are
By default, KStars will use the system CPU time and date for generating the image. Alternatively, you may specify a time and date with the “--date” argument. You can also use this argument for specifying the startup date in normal GUI mode.