Edward Skinner King (1861-1931) was an American astronomer. In 1887 he graduated from Hamilton College and joined the staff of the Harvard Observatory, where he supervised the and related work. He became a pioneer and authority on the process of photographic photometry. In 1912 he noticed that some types of films appeared to perform better during the winter months, which led to the use of the so-called "cold camera" where the temperature is lowered to around -40 °C. From 1926 until his death he was the Phillips Professor of Astronomy at Harvard University.