John Flamsteed, who was born on the 19th of August in the year of 1646, was selected as the astronomical observer of Charles II on the 4th of March in the year of 1675. Flamsteed was the first Astronomer Royal, though he never got the title. Until his death on 31st December in the year of 1719, John Flamsteed had been running the new Royal Observatory, which was built at Greenwich.
Flamsteed got his early education at Derby grammar school, but due to his health problem he could not complete his formal university education. He got his mathematics training from his father and his friends had influenced him to study practical mathematics, astrology and astronomy.
Popular Works of John Flamsteed include his three-volume Historia Coelestis Britannica (1725), which contains his observation and a new catalogue of stars with exceptional accuracy, and Atlas Coelestis (1729), which had celestial charts. These works were taken care of by his widow and assistants and were published after his death.
In November 1669 John Flamsteed got acquainted to the London scientific circles by writing a letter with astronomical predictions to the Royal Society. His discussions on solar topics were considered to be extremely interesting and informative as he was one of the excellent celestial Map Makers of Modern Era.