Sir Patrick Moore was a legendary British astronomer, writer, broadcaster and presenter. He is credited as having done more than any other to raise the profile of astronomy with the British public. He was a former president of the British Astronomical Association and the co-founder and former president of the Society for Popular Astronomy. He wrote over 70 books on astronomy, all of which he typed on his 1908 Woodstock typewriter. He presented all but one episode of The Sky at Night since it began in April 1957.
Dr Percy Seymour did his PhD at The University of Manchester, on the large scale structure of the galactic magnetic field. Subsequent to that he was Senior Lecturer at the Royal Observatory, Greenwhich, and then Principal Lecturer in Astronomy at Plymouth University. He has also taught for the Open University and the University of the Third Age. He is a Fellow of the Royal Astronomical Society, a Member of the Institute of Physics, and has also been a Member of two special commissions of the International Astronomical Union - on The Interestellar Medium, and Astronomy Education. He has published over 15 academic and scientific journal articles on Astronomy. His books on astronomy, most recently Dark Matters, have been published in English and German.