astronomical observatory of Castelgrande
Image: Wikimedia Commons
The astronomical observatory of Castelgrande sits on Mt. Toppo, in Toppo di Castelgrande, Basilicata, Italy, at an elevation of 1,250 metres.
About the Observatory
Operated by INAF-Capodimonte, the observatory benefits from low atmospheric and light pollution at its mountain-top site, making it an ideal location for both professional research and stargazing.
Telescopes & research
The observatory's primary instrument is a 1.54-metre alt-azimuth telescope (TT1) with a 160-centimetre mirror and adaptive optics. For space debris work, it also operates a 22-centimetre ORI-22 telescope and a 35-centimetre Ritchey-Chrétien telescope, installed in 2022. Research at the site covers space debris characterisation, near-Earth objects (NEOs), rotation periods, size and shape detection, and photometric and surface composition measurements. The observatory holds the Minor Planet Center code L28.
Location & getting there
The site sits at 1,250 metres on Mt. Toppo near Castelgrande, in the Basilicata region of southern Italy, chosen for its dark, clear mountain skies.
Visiting the Observatory
As a specialist research facility focused on space debris and NEO tracking, public visiting arrangements are not widely advertised; check with the operating institute before planning a visit.
See your named star from here
An observatory built to track fast-moving debris and near-Earth objects has exactly the precision needed to find something more permanent: the coordinates of a named star. Browse the star catalogue to see how it works.
Opening hours and public-visit programs vary by season. Check Google Maps for current times before you travel.
