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Resources.
http://aa.usno.navy.mil/data/docs/AltAz.html
This page provides a way for you to obtain a table of the altitude and azimuth of the Sun or Moon during a specific day, at a time interval that you specify. Simply specify the object, date, tabular interval, and place below and click on the "Compute Table" button.
http://www.fourmilab.ch/yoursky/Welcome to Your Sky, the interactive planetarium of the Web. You can produce maps in the forms described below for any time and date, viewpoint, and observing location.
http://jeeep.com/details/coord/Translate coordinates (WGS-84, NAD-83, and NAD-27) to and from Latitude/Longitude and UTM. Also, if the location is within the conterminous 48 states, you'll get the converted coordinates for the other map datums.
http://user.online.be/felixverbelen/semexcat.htmSOLAR ECLIPSES in Mesoamerica, AD 1 to AD 1600: The list includes the solar eclipses that were theoretically observable from a number of major locations in territories known to have been the cultural area of the Mayas and Aztecs.