Photographic-based star atlas and planetarium.

A complete software product for analysis and processing of astronomical images. With the built-in star atlas based on the Guide Star Catalogue, it is also possible to perform astrometric and photometric calibration on your images.

Advanced software for astrometry, photometry, robotic observations. Huge database of images and catalogs. Works with MaximDL and ASCOM. Free downloads.

Promoting the use of open scriptable tools for amateur and educational astronomy.

A tool for recording observations and planning future observing sessions. Allows tracking of progress on common amateur observing programs (Messier, Herschel).

The AstroViewer planetarium applet shows a sky map for any time and any location on Earth. Individual printable sky maps (GIF, PDF) may be created.