A MATLAB Script for Predicting Lunar Eclipses

Predicting the local circumstances of lunar eclipses.

PDF document and MATLAB script named leclipse.m that can be used to predict local circumstances of lunar eclipses. This software provides the eclipse type, the universal times and topocentric coordinates of the Moon at the beginning and end of the penumbra contacts, and the time and coordinates at maximum eclipse. The source ephemeris for this routine is a JPL DE430 ephemeris file which is valid from 1849 DEC 26 until 2150 JAN 22. This application uses several functions ported to MATLAB from the Fortran version of the NOVAS (Naval Observatory Vector Astrometry Subroutines) source code developed at the United States Naval Observatory (www.usno.navy.mil/USNO/astronomical-applications/software-products/novas).