Dunsink Lane, Dublin 15, D15 XR2R dunsink@dias.ie

Dunsink Timeline

1774

1774

Francis Andrews of Trinity College Dublin leaves £3,000 in his will for the construction of an Observatory at Dunsink.

1785

Dunsink Observatory opens with Rev. Henry Ussher as Director.

1791

The Observatory is placed under the management of the Royal Astronomer of Ireland.

1792

1792

Rev. John Brinkley takes over as director and records his work on the transits of stars in five large leather bound books.

1827

William R. Hamilton is appointed as the Andrews professor of astronomy in Trinity and becomes director of Dunsink before he has even completed his undergraduate degree in maths and classics.

1829

1829

William Wordsworth first visits Hamilton and his sisters at Dunsink.

1843

1843

On a walk from Dunsink along the canal into town Hamilton has a flash of inspiration and carves his Quaternion equation into Broombridge.

1862

12″ lens is donated to Dunsink by Sir James South.

1868

1868

Grubb builds the South Dome Telescope to mount the South lens.

1874

Robert Ball becomes Director of the observatory, he completed research on Screw Theory.

1880

Dunsink provides the official time for Ireland (Dublin Standard Time).

1916

1916

Ireland moves from DST to GMT, however Dunsink Observatory is still used to maintain accurate clocks throughout the city.

1919

1919

Eclipse expedition to Sobral proves Einstein’s Theory of Relativity with the Grubb coelostat.

1940

1940

Eamon de Valera founds DIAS, it is the second institute of advanced studies in the world after Princeton, USA.

1947

de Valera sets up the School of Cosmic Physics in DIAS and acquires Dunsink Observatory from Trinity.

1949

1949

The ADH (Armagh-Dunsink-Harvard) telescope is built by Perkin Elmer Corporation.

1958

Ellison becomes director of the Observatory and Dunsink becomes a world renowned solar physics research centre.

1977

The Meridian room burns down and a piece of moon rock is lost to the Finglas dump.

1985

Patrick Wayman publishes his history of Dunsink Observatory.

2018

Peter T. Gallagher appointed Director.