The Pistoia Mountains Astronomical Observatory (Italian: Osservatorio Astronomico della Montagna Pistoiese; obs.

code: 104), also known as the San Marcello Observatory and the Pian dei Termini Observatory (Italian: Osservatorio di Pian dei Termini), is an astronomical observatory in San Marcello Piteglio, Tuscany, central Italy.

The observatory uses a 0.4- and 0.6-meter Newton-Cassegrain telescope and is the home of the Gruppo Astrofili Montagna Pistoiese, a group of amateur astronomers known for its members Luciano Tesi (founder), Paolo Bacci, and the late Vittorio Goretti, Silvano Casulli and Vasco Cecchini.

This article about an Italian building or structure is a stub.

You can help Wikipedia by expanding it.This article about a specific observatory, telescope or astronomical instrument is a stub.