Collurania Observatory: The 1885 Merz Telescope and Astronomical Evenings in Teramo

Ascend towards Collurania, just a few kilometers from Teramo’s city center, and you’ll discover a place that makes you feel closer to the stars. The Collurania Astronomical Observatory isn’t just a building: it’s a bridge between earth and sky. Here, among historic and modern telescopes, you can observe the firmament like few other places in Italy. The panoramic view over the Tordino Valley and the Monti della Laga adds magic. Observational evenings offer unique emotions, especially when the sky is clear and the constellations shine brightly. It’s an experience that blends science and poetry, perfect for those seeking something different from the usual tourist route.

The Observatory was established in 1890 through the initiative of Vincenzo Cerulli, an astronomer from Teramo who donated it to the Italian State. Cerulli was a pioneer: he discovered the asteroid 704 Interamnia and contributed to the study of Mars. The structure, designed by engineer Alfonso Gherardi, became a nationally significant research center. Today it is managed by INAF (National Institute for Astrophysics) and continues its scientific and educational mission.

• 1890: Foundation by Vincenzo Cerulli
• Early 1900s: Significant astronomical discoveries
• Today: INAF center for research and public visits

Upon entering the observatory, you’ll be struck by the telescopes. The Merz-Repsold refractor from 1885 stands out—a historic instrument still in working order, used for planetary observations. Nearby, modern telescopes like the 40 cm reflector allow you to peer into distant galaxies. During visits, guides explain how they work and let you experience the thrill of looking through the lenses. It’s not uncommon to see Saturn with its rings or the Moon in detail. The rotating domes and vintage instrumentation make everything even more fascinating, like a journey through time between science and technology.

Observational evenings are the heart of the Collurania experience. They take place on predetermined dates, often coinciding with astronomical events like eclipses or meteor showers. Guides assist you in using telescopes while explaining constellations and celestial phenomena. In summer, when the sky is at its clearest, you can observe the Milky Way in all its splendor. The atmosphere is informal and engaging: no expertise is required, just curiosity. Bring a jacket even in summer, as nights in the hills can be cool, and enjoy the starry spectacle at your own pace.

Visit the observatory for three concrete reasons. First: access to rare instruments like the Merz-Repsold telescope, which you won’t find elsewhere. Second: the guides are astronomers or knowledgeable enthusiasts who make science understandable and exciting. Third: the hilltop location provides dark, unpolluted skies, ideal for observation. It’s an opportunity to break away from routine and discover something new, suitable for adults and children alike. Plus, the admission ticket is affordable and often includes hands-on demonstrations.

The best time is on summer or autumn evenings, when the sky is clearest and mild temperatures favor outdoor observations. Avoid cloudy nights or full moons, which reduce visibility of faint stars. In spring, longer days allow for interesting daytime visits to see the sun with special filters. Always check the weather before booking: a clear sky makes all the difference. New moon evenings are particularly atmospheric, because total darkness enhances the constellations.

After the observatory, explore the surroundings of Teramo. Just a few minutes away is the historic center of Teramo, with the Cathedral of Santa Maria Assunta and the Roman remains of the amphitheater. For a natural experience, head towards the Monti della Laga, perfect for walks through woods and waterfalls. If you love art, the Francesco Savini Archaeological Museum houses local artifacts. All these places combine well for a day blending science and culture, without the need for long journeys.