Discover Monsaraz night sky and be amazed with the Universe

Happening at OLA

Astronomical Observations

At 21:30 and 23:00 (Summer) or 18:30 (Winter). Learn to find the polar star, identify the constellations and know their legends, relate stellar colours with their temperatures, observe star clusters, nebulas and distant galaxies with the help of our telescopes.

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Solar observation

From Tuesday to Saturday from 17:00-19:00 (Summer) or 14:00-17:00 (Winter) the observatory offers the possibility of discovering our star through safe telescopes. One can appreciate the solar spots, the protuberances and filaments on the surface of the Sun.

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Young Astronomers

Every Saturdays afternoon, from 17:00-18:00 (Summer) 16:00-17:00 (Winter), OLA offers activities for children where the young astronomers learn more about science and astronomy in an entertaining and relaxed way.

Photography exhibition: Sky & Sea

Exhibition of astronomical and underwater photography by professor Pedro Ré.

Astronomy for kids

20th August. Introductory course to Astronomy aimed especially at children from 6 to 12 years old. Tackles various topics such as the seasons of the year, space exploration and even the beginning of the Universe. An ideal program for parents and children with many experiments to do and build.


On the 2nd, 3rd and 4th of September, Reguengos de Monsaraz and the Alqueva Lake Observatory will host a star party with the participation of researchers and amateur astronomers and all those who want to share their experiences of observation and astronomical photography. Free entry but requires registration.


Activities for Schools

OLA offers Astronomy activities planned taking into consideration the different school years and the curricular plan of the Natural Sciences, Physics, Chemistry and Mathematics classes. Check here the available activities for schools, from the 1st grade up to the 12th grade.

Activities for Senior Groups

OLA offers an ensemble of activities havin gin mind the senior groups. Check here the list of possibilities.

Equipment Rental

We have astronomical equipment available to rental.

Auditorium Rental

This ample room is the space where are displayed the photographic exhibitions authored by Portuguese astrophotographers and amateur astronomers.

Observation Platforms Rental

The observatory makes the observing platforms available to be used by amateur astronomers and astrophotographers.

External Observations for Groups

In case you plan to have a session in the facilities of your company, school or in any event your are organizing, we have at your service the experience of our sky guides and our equipment.

Online activities

Do you need time to relax with friends, do you want to create a good working environment in your team or would you like to add an activity at your school? OLA offers a collection of games and talks that can be done online for schools and companies.

Gift card

Offer a gift full of stars. Purchase a gift card with a personal message valid for any activity at the observatory.