The Osservatorio Astrometrico Santa Lucia Stroncone ( Santa Lucia Stroncone Astronomical Observatory ) is an observatory that studies stars in the sky . It is found in the town of Stroncone in Italy . The Osservatorio Astrometrico Santa Lucia Stroncone ( Santa Lucia Stroncone Astronomical Observatory ) is located in north central Italy in the town of Stroncone in Umbria , about 6 km SSE of the city of Terni .