On what planet was a large rectangular outcrop that is composed mainly of sandstone first observed by an English astronomer born 1618?
Jeremiah Horrocks Jeremiah Horrocks (1618 – 3 January 1641), sometimes given as Jeremiah Horrox (the Latinised version that he used on the Emmanuel College register and in his Latin manuscripts), was an English astronomer. He was the first person to demonstrate that the Moon moved around the Earth in an elliptical orbit; and he was the only person to predict the transit of Venus of 1639, an event which he and his friend William Crabtree were the only two people to observe and record.
Kepler-47b Kepler-47b (also known as Kepler-47(AB)-b and by its Kepler Object of Interest designation "KOI-3154.01") is an exoplanet orbiting the binary star system Kepler-47, the innermost of three such planets discovered by NASA's "Kepler" spacecraft. The system, also involving two other exoplanets, is located about 4,900 light-years (1,500 parsecs, or nearly km) away in the constellation Cygnus. The binary system is the first to be found with more than one circumbinary planet.