Dunsink Lane, Castleknock, Dublin 15, D15 XR2R

Visitor Nights and Events

Visitor Nights

Visitor Nights are usually held twice a month during the winter months (October-March). Weather permitting, visitors can view celestial objects through the historic Grubb Telescope and two smaller telescopes. Visitors can also attend audio-visual presentations and lectures on a wide variety of topics in astronomy. There is also a question and answer session on all your astronomy related queries. Open nights are free of charge.  We are very grateful to the Irish Astronomical Society for their long-standing support with our Open Nights and other events.

Check our homepage and social media (twitter, facebook) for upcoming events and open nights.

Please note that telescope observing requires dark skies and so the grounds of the Observatory are not well lit.  As with many historic sites, the paths underfoot can be a bit rough, so wear appropriate footwear and bring a torch if needed.

For more information on open nights contact Hilary O’Donnell, Tel: 087-6294966
E-mail   hod @

Introducing Astronomy to Youth/Family groups

From time to time Dunsink Observatory holds a special evening for parents and children who want to learn more about astronomy and space. This family event evening kicks off at approximately 7:30 pm with a short presentation, followed by live stargazing (weather permitting) and a lively question and answer session. The evening  presents an exciting opportunity for parents and children to meet a real astronomer and explore the night sky together.

For more information or to register for the next  family event please contact Hilary O’Donnell,

Tel: 087-6294966

Astronomy Trail

The Astronomy Trail is a major initiative led by The Dublin Institute for Advanced Studies (DIAS) to establish an astronomy tourism trail covering observatories, visitor centres and astronomical research institutes across the Island of Ireland. This initiative aims to establish a link between Science and Culture and to promote heritage and cultural tourism on a trail that can be followed, in whole or in part, by individuals, families, groups or organized tours.

Proposed by Prof. Luke Drury, former director of the School of Cosmic Physics, DIAS, and inspired by the French “Routes des Observatoires”, it is intended that the Irish Astronomy trial will be integrated into other European astronomical heritage and outreach projects.

The trail includes sites of astronomical interest including megalithic monuments such as the passage tomb at Newgrange, Birr Castle and its mighty reconstructed telescope, and the observatories at Dunsink and Armagh. While astronomers may be aware of some of the sights to seen on the trail, it is hoped that the website and information will make it easier for people to appreciate the cultural heritage of Ireland and to visit the less well-known places.