Lewis's Eclipse Calculator

This applet requires Java 1.1.

Enter the latitude and longitude (in degrees, minutes and seconds) and altitude (in meters) of the location of interest, and then click the "calculate" button.

The calculator will show the time of maximum eclipse, and the times of 1st, 2nd, 3rd and 4th contact. (1st = partial phase start, 2nd = total phase start, 3rd = total phase end, 4th = partial phase end.) All times are UT (GMT).

Negative longitudes are Eastern hemisphere, negative latitudes are Southern hemisphere. The sign of numbers entered into the minute and second fields will be replaced by the sign used in the degree field. You may use decimal degrees. Setting "E" or "S" will negate the corresponding position value.

Although the calculator has been tested, I do not guarantee the values produced. You use the calculator at your own risk.
For more information, visit Fred Espenak's fascinating eclipse homepage at NASA.
Visit my test site!
mailto: webrelay@lmcd.demon.co.uk

Version 1.1: January 16, 2000