Manila Observatory Exhibition: Discoveries (1865-1945)

The first exhibition, Discoveries, showcased the beginnings and rapid growth of the Manila  Observatory from 1865 under the Spanish government, and its reorganization under the American administration from 1901 up until World War II.  From its humble beginnings in an abandoned pigeon house,...

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...