The astronomical Association of Feltre Rheticus was founded as Gruppo Astrofili Feltrini, in 1974. In 1973 three friends decided to establish in Feltre a group of people passionate about astronomy. The three observed Mars and Jupiter, performed systematic and almost daily observations of the Sun, observed the transit of Mercury in 1973, with refractories of 5 and 6 cm in diameter. Involving three other amateur astronomers, the foundation of the GAF officially took place in 1974.
The observatory organizes and hosts many events that are located within their official site and that are suitable for adults and children.