UK: John Goodricke York
John Goodricke, (born Sept. 17, 1764, Groningen, Neth.—died April 20, 1786, York, Yorkshire, Eng.), English astronomer who was the first to notice that some variable stars (stars whose observed light varies noticeably in intensity) were periodic. He also gave the first accurate explanation for one type of periodic variable.
Minster Yard, York, UK