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Software d'astrométrie CHARON : Manuel d'utilisation. WorldWide Telescope. Skychart. For use with Linux, Windows, Mac OS X This program enables you to draw sky charts, making use of the data in many catalogs of stars and nebulae.

Skychart

In addition the position of planets, asteroids and comets are shown. The purpose of this program is to prepare different sky maps for a particular observation. A large number of parameters help you to choose specifically or automatically which catalogs to use, the colour and the dimension of stars and nebulae, the representation of planets, the display of labels and coordinate grids, the superposition of pictures, the condition of visibility and more. All these features make this celestial atlas more complete than a conventional planetarium. The software itself is released under the GPL license. The different catalog data are generally public domain but an acknowledgment to the original catalog author is require if you use this data for your research. C2A - Planetarium Software. C2A (Computer Aided Astronomy) is a Planetarium software that allows you to build detailed views of stellar fields.

C2A - Planetarium Software

An important objective of this software is to take into account the main catalogues available to professional and amateur astronomers in order to prepare observations on small fields as well as astrometry and photometry works. C2A is also an easy to use general purpose Planetarium software with many functions. C2A is able to display the following catalogues: SAO, GCVS, WDS, Gliese and Hipparcos (all four provided with the standard program distribution), Guide Star, Tycho-2 (both can be downloaded from this site in the Downloads page), USNO-SA1.0, USNO-A2.0, USNO-B1.0, UCAC1, UCAC2, UCAC3, UCAC4, NOMAD and PPMXL (which are not provided with the distribution because of their size).

For photometry purpose, C2A natively integrates the Loneos catalogue (UBVRI photometry of faint field stars, which is part of the standard distribution package). C2A is a freeware. SKY-MAP. SkyGlobe. Stellarium. The Aladin Sky Atlas.