**Description:**

This program for celestial navigation calculates the point where two lines of position
intersect (intercept method) and replaces a graphic plot. Enter longitude and latitude
of an assumed position, azimuth and intercept of the first observation, and azimuth
and intercept of the second observation. Hit the "Calculate" button, and the program
does the rest. Blank dialog boxes are regarded as zero. Use the radio buttons to
select N, S, E, or W.

A running fix is obtained by entering course and distance traveled between both
observations. The program advances the first LOP accordingly.

The program uses the laws of plane geometry and is subject to the known restrictions.
The angle between both LOP's should be in the range from 30° through 150°, and the
calculated position should be less than approx. 50 nautical miles away from the assumed
position. The method is not accurate in the vicinity of the poles.

LICENSE

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the license or any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License
(http://www.gnu.org/licenses/) for more details.

Henning Umland N 53° 20' 34'' E 9° 52' 00''

Check this web site for updated versions:
https://www.celnav.de/index.htm