# Galáctica

Activity company en Arcos de las Salinas

Fuente: https://www.geocalia.com/en/companies/galactica-javalambre-astronomy-centre

A centre for the dissemination and practice of astronomy next to the Javalambre Astrophysical Observatory: museum, solar and night observation with telescopes and observatory visits.

Galáctica is the astronomy outreach centre of the Centro de Estudios de Física del Cosmos de Aragón (CEFCA), the body that built and operates the Javalambre Astrophysical Observatory. It is run by CEFCA together with AstroÁndalus, an astrotourism company, and is in Arcos de las Salinas, at the foot of the range.

## What it has

An interactive museum in five areas (the observatory, work in astrophysics, the universe, the sky and light pollution, and a space devoted to nine women astronomers), domes with telescopes, an amphitheatre for night observations and three main instruments: the GT80, with an 80 cm aperture; the GT40, 40 cm, on a mobile platform; and a 150 mm solar telescope with filters to see the chromosphere. It also hires out domes to anyone who wants to install their own telescope, with remote operation.

## How to book

Everything is bought on its website, choosing date and time. Observations depend on the weather: with 48 hours' notice they email you if the forecast is bad, and with 24 they confirm the cancellation and offer a voucher valid for 12 months or an indoor plan. The main building is wheelchair accessible, but the domes on the guided visit are not, because they are reached by spiral staircases. The audio guides are in Spanish, English and French.

## What they run

- [Small-group night with Galáctica's GT80 or Jean Assan telescope](https://www.geocalia.com/en/spain/aragon/javalambre-mountains/things-to-do/galactica-gt80-jean-assan-telescopes), in Sierra de Javalambre. Limited Edition Night Observation with the 60 cm Jean Assan. Desde 60 € per person. 2 h. Small group. Sky tour with a laser and observation through the telescope. Premium Night Observation with the GT80. Desde 85 € per person. 3 h. Small group. Starts in the control room and continues in the dome of the 80 cm telescope
- [Galáctica Museum, with a guided tour of the domes and the control room](https://www.geocalia.com/en/spain/aragon/javalambre-mountains/things-to-do/galactica-museum), in Sierra de Javalambre. Entry to Galáctica with a guide. Desde 16 € per adult (€12 children up to age 10; free under 4). 1 h 30. All year, on the days and at the times in its calendar. With a science communicator; enters the domes and the control room, which cannot be seen on your own. Self-guided entry to Galáctica. Desde 13 € per adult (€8 up to age 10; free under 4). 1 h 30. Tour on your own, with an audio guide in Spanish, English or French
- [Night observation with telescopes at Galáctica](https://www.geocalia.com/en/spain/aragon/javalambre-mountains/things-to-do/galactica-night-sky-observation), in Sierra de Javalambre. Themed night observation with telescopes. Desde 25 € per adult (€12 children up to age 10; free under 4). 1 h 30. Fixed nights; in November and December 2026, Saturdays at 20:00. Each night has a theme: a meteor shower, Saturn, the Moon, Orion. If cancelled because of weather, a 12-month voucher or an indoor plan
- [Observing the Sun with a professional telescope at Galáctica](https://www.geocalia.com/en/spain/aragon/javalambre-mountains/things-to-do/galactica-solar-observation), in Sierra de Javalambre. Entry to Galáctica with solar observation. Desde 28 € per adult (€23 children up to age 10; free under 4). 1 h. Saturdays and Sundays. Includes self-guided museum entry, a short talk about the Sun and observation outdoors
- [Guided visit to the Javalambre Astrophysical Observatory, on the Pico del Buitre](https://www.geocalia.com/en/spain/aragon/javalambre-mountains/things-to-do/javalambre-observatory-visit), in Sierra de Javalambre. Entry to Galáctica with a visit to the Javalambre Astrophysical Observatory. Desde 40 € per person. 2 h. Ages 12 and up. April – October. Departs from Galáctica with the guide, in your own car. Minimum 4 people. Includes self-guided museum entry

Independent companies: you book with them, on their terms. Prices are as they publish them and may change.

## Practical details

- Address: 44421 Arcos de las Salinas, TE
- Phone: +34 613 291 772
- Email: info@galactica.org.es
- Open all year; in winter, from 1 November to 31 March, from 10:00 to 14:00 and from 15:30 to 19:30. Opening days change with the season: check its calendar
- Languages: Spanish, English, French
- Accessibility: Wheelchair accessible
- Details checked on 13 November 2026.

## Contact

- Web: https://galactica.org.es/
- Coordenadas: 39.9991, -1.0408

## Preguntas frecuentes

### Does it have a café?
No. You can bring water and something to eat.

### Are there discounts?
Yes: reduced admission for people with a disability of 33% or more, for residents of Arcos and for children up to age 10. Under-4s do not pay.