Tag Archives: Fr. Charles Deppermann SJ

4 stages of Manila Observatory’s history

Before picturing the personality and labors of who may be considered the true founder of the Manila Observatory--the private Institution now maintaining its more than centenary existence, with the same ideals giving it life--we will present a rapid historical scheme as a setting...

Sidereal Time: How to measure time by looking at the stars

A. What is Sidereal Time? In his book, Light Cavalry, Fr. Horacio de la Costa, SJ described Manila Observatory’s time-keeping service in the 1930’s–a service which dates even before the year 1900: The government supplies the Observatory with personnel, equipment, and special telegraphic...