Arthur Storer appears to have become an apothecary, as later amongst his possessions was listed ‘a Parcell of Docters meanes’. His main interest was astronomy and in the late 1660s, he travelled with his half-sister Ann and her family to Maryland, to measure and observe the stars, planets and comets. His equipment was rudimentary, and with an astrolabe, he took regular readings of the celestial bodies. In 1678, he returned to England and stayed with his uncle Babington at his parish in Boothby Pagnell, Lincolnshire. He later returned to Maryland where he measured stars, planets and comets and sent his calculations to Isaac Newton. He said of the comet of 1682, that he must be ‘one of the first that took notice thereof in Maryland’. The comet was eventually named Halley’s Comet, since Edmund Halley was the first to identify its previous appearances and forecast its next. All these observations were later found to be very accurate, and were some of the most accurate readings of the time.
Storer died in early 1687 and is buried in Maryland. Shortly afterwards, Newton’s Philosophiæ Naturalis Principia Mathematica, was published. In it, he acknowledged Arthur Storer for all the observation and readings of the stars and the comet. ‘The same day, Mr. Arthur Storer, at the river Patuxent, near Hunting Creek, in Maryland, in the confines of Virginia, in lat. 38½o, at 5 in the morning (that is, at 10h. at London), saw the comet above Spica角, and very nearly joined with it, the distance between them being about ¾ of one degree’.
Arthur Storer was the first astronomer in North America known by name, to make accurate measurements of celestial objects, and is now internationally recognised. Newton’s tribute was a fitting epitaph for a skilled astronomer, scientist, mathematician and friend.