42.02° N · 0.74° E · Montsec and Àger
Two hours with an astronomer in the Starlight-certified mountains: an hour in a 12-metre planetarium whose dome opens at the end, and another among the telescopes, with the Moon, the planets or a nebula if the sky cooperates.
Who offers it
Independent companies: you book with them, on their terms. Prices are as they publish them and may change.
Step by step
The Parc is on the Coll d'Ares track, a quarter of an hour by car from the village. Arrive before your session to see the exhibition.
An hour under the 12 m dome, which at the end opens to the real sky.
Another hour outside, among the domes, with the astronomer and the 50 cm telescope if it is clear.
This is the session you go to Àger at night for. Since 2013 the Montsec range has held the double Starlight certification, as a reserve and as a tourist destination, and the Parc Astronòmic is the place where that sky is shown: you arrive, sit down in a planetarium, and at the end the dome and the front wall open and what is above you is no longer a projection.
The general one lasts two hours and is led by an astronomer. The first hour is in L'Ull del Montsec, a 12-metre mobile dome: a film about the Voyager probes, then that night's sky simulated and a journey through the universe. Then the dome opens and a guide helps you recognise what can be seen with the naked eye.
The second hour is in the telescope park. The guide explains the instruments and the most interesting things that night, and if the weather allows you look through the biggest telescope, 50 cm: the Moon, a planet, a nebula. With your ticket you can see the permanent exhibition and the Starlight Room, on light pollution, at your leisure.
The family one is an hour and a half, 45 minutes for each part, and is scheduled on first-quarter moon nights to look at the Moon, the planets and the brightest stars. It is recommended from age 5; the general one, from age 10.
Each night has several sessions, some in Spanish and others in Catalan; when you buy you choose the time and language. For Friday 13 November 2026, for example, the website gave sessions at 18:00 and 21:00 in Catalan and at 19:00 in Spanish, plus two in 3D, at 20:00 in Catalan and at 22:00 in Spanish. The calendar changes with sunset: check the one for the day you go.
The night costs €18 (€16 reduced) and the 3D version, €20 (€18). The reduced rate is for under-15s, young people with a Tarifa Jove, older people, people with disabilities and large or single-parent families, with their card. Under-5s don't pay. You buy online at its ticket office.
Who it's for
What to bring
Map
What you have around the starting point.
More to do
Itineraries
Tips
With a new moon the deep sky shines more; with a first-quarter moon, the Moon in the telescope is a spectacle. If you go with small children, the family session is already scheduled in that phase.
Going back to Lleida at eleven at night is almost 60 km of road. Cal Maciarol is a kilometre from the Parc, and the Hotel Espai d'Estels, in the village.
The planetarium always goes ahead. If the day dawns overcast, the 3D version makes more sense.
Questions
Two hours the general one and an hour and a half the family one.
Yes, in their own sessions. Each night alternates Spanish and Catalan.
The general one is recommended from age 10 and the family one from 5. Under-5s don't pay.
The planetarium goes ahead anyway; the telescope part depends on the sky.
Geocaliahttps://www.geocalia.com/en/spain/catalonia/montsec-and-ager/things-to-do/night-at-the-montsec-astronomic-park
