Features a reference of Messier objects, telescope information, images, and deep-sky links.

Dedicated to amateur radial velocity studies.

Electronic encyclopedia for both the beginner and the experienced.

Dedicated for beginners desiring to learning astronomy such as telescopes, accessories, star charts, forum and clear sky clocks.

An application used to align satellite dishes to geostationary satellites.

Community, news, and galleries.

Oak tripod, tripod accessories, leg kits, feedback, and links.

Collection of images, text, video, publications, and software.

Images, ccd information, buy and sell, and links.

Design, construction, and initial observational results of a 4-GHz amateur radio telescope with circuit board layouts, software, and schematics.

Announcements and news, general discussions, beginner's corner, equipment and reviews, observing, and astrophotography.

Observation reports, photos, equipment reviews, and astronomy tips.

History, goals, highlights, results, and future plans.

Gallery, remote astronomy, go-to conversions, and links.

Everything for the astronomer including news, classifieds, auctions, articles, forums, and a calendar.