HEATKEYS

This site includes lots of information that is time and date related, such as yearly and monthly calendars, countdown counters and the world clock which shows current time in cities all over the world.

Scientific physics forums for professionals and students to discuss serious issues and topics regarding physics in theory, practice, study and reality. Students can also find help for homework and career perspectives

Find sunrise, sunset, moonrise and moonset times for any location worldwide in 2011 and 2012 with one click.

Stargazing Network provide free Web page hosting for the Amateur Astronomy Community. Stargazing Network is sponsored by Cetus Technology at www.cetus.net.

Current weather conditions from Lowell, MA updated every 5 minutes. Includes links to weather, astronomy & local community sites.

This site pulls together the best and most frequently accessed weather data on the Internet and puts it all into one easy to use site with weathercams, radar and satellite images, forecasts, and a message board.

Moonstick Co. is the designer and manufacturer of manual visual calculators for astronomy, timekeeping, and computation

The Astronomical Applications Departmentof the U.S. Naval Observatory computes, from fundamental astronomicalreference data, the position, brightness, and other observablecharacteristics of celestial bodies, as well as the circumstancesof astronomica...

A comprehensive calculation website, which aims to provide higher calculation accuracy, ease of use, and fun, contains a wide variety of content such as lunar or nine stars calendar calculation, oblique or area calculation for do-it-yourself, and hig...