Here we describe the construction and scientific output of the Automatic Photometric Telescope, built in the mid 1980’s the APT became the most productive variable star observation platform in the UK – possibly the world.

APT_diagram The APT (Automatic Photometric Telescope) Block Diagram

Another first for Crayford Manor House Astronomical Society is the automatic photoelectric telescope designed and built by Jack Ells. This instrument undertakes photometry unaided throughout the night and was the most productive amateur telescope in the UK during it’s use.

APT_Resulta Example of the results possible the the Automatic Photometric Telescope. (APT)