This website, authored by Ricky Leon Murphy of Astronomy Online, is a collection of references, images, and information for general astronomy. This work covers topics from the basics of science and observation through...

Created by author Nick Strobel, "Astronomy Notes" is an educational resource for introductory astronomy classes for undergraduates. This section describes: the celestial sphere, coordinate systems, the motion of the...

This website provides free access to 22 interactive science labs with downloadable simulations for use in grades 4-9. Half of the simulations are related to Astronomy and half pertain to general topics such as simple...

AstroWeb contains annotated pointers in 10 major subject areas related to astronomy, including observatories, publications, and research areas. URLs are exhaustively tested, a real plus for any meta-site. Exact count is...

This web page contains an activity to track the position of the sun at different times during the year. Participants create their own sundials and mark the location of the sun’s shadow over a period of time. An...