Ephemeris and Time
- TerraServer USA. 2006. Search TerraServer.  Web application. (Find your latitude and longitude from your street address.) << http://terraserver.homeadvisor.msn.com/AdvFind.aspx
 accessed 6/2006
 
- Spot-On Sundials. 2006. Print your solar noon calendar.  Web applet. (Prints a reference table of standard (watch) times of solar noon on each day for a location for one-year.) << http://www.solar-noon.com/
 accessed 6/2006
 
- Univ. of Oregon Solar Radiation Monitoring Laboratory. 2006. Sun Position Calculator Web applet. (Returns the Sun altitude and 
azimuth for your location and selected date.) << http://solardat.uoregon.edu/SolarPositionCalculator.html accessed 6/2006
 
- Astronomical Applications Dept., United States Naval Observatory. 2006. Data Services. Webpage. << http://aa.usno.navy.mil/data/ accessed 6/2006
 
- Complete Sun and Moon Data for One Day (including the standard (watch) time of the Sun's transit - or local solar noon).
   
- Table of Sunrise/Sunset, Moonrise/Moonset, or Twilight Times for an Entire Year.
   
- Duration of Daylight/Darkness Table for One Year.
  
- Altitude and Azimuth of the Sun or Moon During One Day.
    
- Earth's Seasons - Equinoxes, Solstices, Perihelion, and Aphelion 1992-2020.
   
- Univ. of Oregon Solar Radiation Monitoring Laboratory. 2006. Sun path chart program Web applet. (Makes a chart showing the Sun's altitude and azimuth for one year at your location.) << http://solardat.uoregon.edu/SunChartProgram.html accessed 6/2006
 
- NASA. 2006. Horizons Web Applet. (Detailed ephemeris for any solar system object.)  << http://ssd.jpl.nasa.gov/horizons.cgi
 accessed 6/2006
 
Bibliography
Sun dials
- Evans, James. 1998. The History and Practice of Ancient Astronomy. Oxford Univ. Press. ISBN: 0195095391
 
- Waugh, Albert, Edmund. 1973. Sundials: Their Theory and Construction. Dover. ISBN: 0486229475
 
- Rohr, Rene R.J. 1996. Sundials: History, Theory, and Practice. Dover. ISBN: 0486291391
 
- Stoneman, Milton. 1982. Easy-to-Make Wooden Sundials. Dover. ISBN: 0486241416 
 
- Mayall, R. Newton. 2000. Sundials: Their Construction and Use. Dover. ISBN: 048641146X 
 
 
- The Solstice Project. 2006. Homepage. (Founded by Anna Sofaer, discoverer of the Fajada Butte sundial to study and conserve astronomical resources at Chaco Canyon.) << http://www.solsticeproject.org/ >> 
 
Astronomical math
- Duffet-Smith, P. 1988 (3ed). Practical Astronomy with Your Calculator. Cambridge Press. << 
1988QB62.5.D83..... >> 
 
- Montenbruck, O. & Pfleger, T. 2002. 4ed. Astronomy on the Personal Computer.  Springer.  ISBN 3-540-67221-4 << ttp://www.springer.com/
 >> 
 
- Meeus, J. 1998. 2ed. Astronomical Algorithms. Willmann-Bell.  ISBN 0-943396-61-1   << http://www.willbell.com/ >> 
  
Prepared by and report errors or broken links to:  K. Fisher 2/2007 fisherka@csolutions.net.