Cartes du Ciel is free software released under the terms of the
GNU General Public License
The Tool bar editor allow you to edit the button bar layout.
Gives you control over the used time in the chart. Here you also can make your settings to simulate the movement of objects in the solar system. A click the line Date/Time opens the configuration window. Have a look at this page for further details.
This enables you to configure the position of the observer and how to display the horizon. Click on the line Observatory to open these configuration dialog boxes. Look at this page for further details.
Lets you choose from several possibilities to display your chart, such as the coordinate system, field of views and the grid spacing. A click here opens the Chart, Coordinates configuration dialog boxes. Look at this page for further details.
Here you can choose which catalogs the use to display objects on the chart. Click here to open the Catalog configuration window. Look at this page for further details.
Lets you set planet rendering options and manage the comet and asteroid data. Click this line to open the Solar System configuration dialogs. Look at this page for further details.
Here you can customize the appearance of the graphical interface. Configure things like the sky colour, lines, labels and fonts of the program. Also, if you want to mark the field of vision of your eyepieces or CCD/CMOS sensors on the chart, configure them here. Click the line here to go to the first tab of the Display configuration dialog boxes. Look at this page for further details.
Here you can configure settings how to combine the display of object pictures on the chart. Here you also can set to you use RealSky (Local installation, if you've got the CD's) or the online DSS services. Click this line to go to the Pictures configuration window. Look at this page for further details.
Miscellaneous settings about the database and telescope connections, and the setting of the language in the program. Click here to open the General configuration window. Look at this page for further details.
Lets you configure how your computer connects to the Internet and set the links to the online resources. Click this line to go to the Internet configuration dialog boxes. Look at this page for further details.
Opens the main configuration window from where you can make all program settings.
This window is divided into several sections, every section contains the same possibilities as described on the previous paragraphs of this page. So here are the shortcuts:
Clicking on this will cause the program to save the current settings as the new default. A newly opened chart will use these settings. Also, when you click File → Reset chart and options, the active chart will be set according to these saved settings.
If you check this line, the program will ask you to save the settings every time you exit the program.
By checking the small checkbox “Apply change to all chart” at the bottom of the configuration window, you apply all the configuration changes to all your opened charts. When this box is unchecked, the configuration changes will only be applied to the active chart.