[shareware MS-W] Sunlight clock with world times and sun and moon positions and coverage.

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

News, reviews, articles, forums and downloads of astronomy related programs for various platforms.

Discover links and resources for astronomy software for amateur and professional astronomers and for people interested in astronomy, stargazing and space.

Windows software for converting dates in various lunar and other calendars and for finding lunar phases and eclipses of various kinds.

Links to the BASIC programs that appeared in Sky & Telescope, to shareware/freeware astronomy related software and to vendors of astronomy software.

Review of the solar system simulator (by Spacetech) for RISC OS workstations.

Lunar and solar periodicity formulas, definitions, time formulas, notation, astronomical constants with computer code for a programmable HP 48 by James Q. Jacobs.

Software links for astronomers professional, education and amateur. Planetaria, sky charts, and databases for PC, MAC and UNIX/LINUX platforms.

[commercial & freeware - RISC OS] Direct links to astronomy software available for RISC OS.