"Historia Coelestis Britannica" is a historical work written by the English astronomer John Flamsteed in the late 17th century. It serves as a comprehensive catalog of stars and celestial events, documenting Flamsteed's observations and findings. The book was published posthumously in 1725 and is considered a significant contribution to the field of astronomy. The work is notable for its detailed star charts and accurate positions of celestial bodies, which were groundbreaking for its time. It laid the foundation for future astronomical studies and helped establish the Royal Observatory, Greenwich as a key institution in the field.