Precision Sun Ephemeris

Computes true-of-date, geocentric right ascension, declination and position vector of the Sun.

This MATLAB function computes a true-of-date geocentric ephemeris of the Sun based on the data and numerical methods described in the book, Planetary Programs and Tables by Pierre Bretagnon and Jean-Louis Simon. This book is available from Willmann-Bell at www.willbell.com. A MATLAB script is included which demonstrates how to interact with this function.