![]() I click 'sync' to tell to CdC the real position of the object. Ĭhevalley has also created a lunar atlas program, Virtual Moon Atlas, which is also free and open source software. Cartes du Ciel tracks the telescope to the object position. DE431 is a longer integration (covering years -13,200 to +17,191) than DE430 (covering years 1550 to. See main web page for more information and full download. ![]() Īccording 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". The ephemeris DE431 is similar to DE430 but was fit without the core/mantle damping term, so the lunar orbit is less accurate than in DE430 for times near the current epoch, but is more suitable for times more than a few centuries in the past. Sk圜hart / Cartes du Ciel Free software to draw sky charts Sk圜hart is a software to draw chart of the night sky for the amateur astronomer from a bunch of stars and nebulae catalogs. Other great apps like Cartes du Ciel (Skychart) are Sky Map, Gaia Sky, KStars and Sky Guide. The best alternative is Stellarium, which is both free and Open Source. The "red bulb" feature is useful when using software outside on a laptop on a dark night. Look at the News and Documentation for more information about this. There are more than 25 alternatives to Cartes du Ciel (Skychart) for a variety of platforms, including iPhone, iPad, Android, Windows and Android Tablet. Download Latest Version skychart-4.2.1-4073-windows-圆4.exe (43. 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.ĬDC includes the ability to control computerized GoTo telescope mounts, is ASCOM and INDI compliant, and supports the USNO's UCAC catalogs and ESA Gaia data, along with numerous other catalogs and utilities. Cross-platform ( Microsoft Windows, macOS, Linux)Ĭartes du Ciel ("CDC" and "Sk圜hart") is a free and open source planetarium program for Linux, macOS, and Windows.
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