Cartes du Ciel

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This article is about a piece of astronomy software. For the star mapping project with a similar name, see Carte du Ciel.
Cartes du Ciel
Screenshot of Version 3 beta 0.1.0
Developer(s) Patrick Chevalley
Stable release
3.10 / 29 March 2014; 3 years ago (2014-03-29)
Written in Object Pascal
Operating system Cross-platform (Microsoft Windows, macOS, Linux)


Educational software
License GPLv2
Website Version 3 (stable)

Cartes du Ciel is a free and open source planetarium program for Linux, macOS and Windows. With the change to version 3, Linux has been added as a target platform, licensing has changed from freeware to GPLv2 and the project moved to a new website.

The software maps out and labels most of the constellations, planets, and objects visible with a telescope. It can also download Digitized Sky Survey Charts and superimpose images over these charts. Numerous star charts and indexes can be installed. There are also telescope interfaces and many versatile display options.

According to the programmer, Patrick Chevalley, it was released as freeware because "I’d rather see amateurs spend their money for a new eyepiece than for astronomy software".[1]

Chevalley has also created a lunar atlas program, Virtual Moon Atlas, which is also free and open source software.[2]

See also[edit]


  1. ^
  2. ^ virtualmoon on

External links[edit]