Dunsink Observatory is the oldest scientific institution in Ireland. Built in 1783-1785 for the first Andrews' Professor of Astronomy in Trinity College Dublin, the observatory is situated on a hill 8km northwest of Dublin's city centre, where it first housed the Astronomy section of the School of Cosmic Physics in the Dublin Inst,, itute for Advanced Studies. Sir William Rowan Hamilton, the discoverer of quaternion mathematics and eminent 19th Century mathematician and physicist, is a former director of the Observatory, during his term as Andrews' Professor of Astronomy.
Open Nights are held on the 1st and 3rd Wednesdays of each month during the winter months (October-March). Weather permitting, visitors can view celestial objects through the historic Grubb telescopeand 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.
Dunsink, Castleknock, Dublin 15.