Francesco Denza and the Carte du Ciel


On 07 June 1834, Francesco Denza (1834-1894) was born in Naples. He was a Barnabite priest, astronomer, and meteorologist who immersed himself in solar spectroscopy and founded what later became the Italian Meteorological Society. He renovated the observation deck of the Vatican Observatory, founded in 1888. Vatican staff members realized that participation in the program ‘to map the sky’ would immediately give their young observatory international recognition. Pope Leo XIII commissioned Father Francesco Denza and Father Giuseppe Lais to attend the Astrographic Congress and enroll the Vatican as one of the participating institutions in the international Carte du Ciel project which made a photographic map of the stars.