The Observatório do Lago Alqueva, together with the Associação Portuguesa de Astrónomos Amadores (APAA), organize an Amateur Astronomers Meeting during the afternoon of the 6th of April.

In this night, with the participation of the Institute of Astrophysics and Space Sciences, takes place OLA’s second Messier Marathon where we set ourselves to observe through the telescope the maximum possible number of galaxies, nebulae and open and globular clusters from the 110 objects belonging to the Messier catalog built by Charles Messier, the french astronomer of the 18th century.

Accommodation. There are several possibilities for accommodation in the vicinity of the observatory. See some of our recommendations here. It is also possible to camp in OLA’s field.

Entry to the meeting: 0€.

Entry to the marathon: without telescope 14€, 9€, 35€ (adult, youngster, family); with telescope 0€.

To register, please fill in this form.



14:00 Welcome – Nelson Nunes and Pedro Ré

14:30 The construction of OLA – Leonel Godinho

15:00 Observing and photographing the Sun  – Pedro Ré

15:30 Portuguese Meteor Network – Carlos Saraiva

16:00 Coffee break

16:30 Asteroid observations – Rui Gonçalves

17:00 Occultations – Wolfgang Beisker (IOTA-ES)

17:30 Observation and photography of the planets – Paulo Casquinha

18:00 The contribution of the amateur astronomer – João Gregório

21:30 – 6:00 Messier Marathon


Organization and support:




Data / Hora
Date(s) - 06/04/2019 - 07/04/2019
14:00 - 6:00


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