Transit instrument,Dunsink Observatory

Numéro d’image : 11879919
Transit instrument,Dunsink Observatory
Transit instrument at Dunsink Observatory,near Dublin,Ireland. A transit instrument is used to measure the positions of the stars as they transit a pre-defined point. Founded in the 1780s,Dunsink Observatory is the oldest scientific organisation in Ireland,and the directors of the observatory were the Astronomers Royal of Ireland until that post ended in 1921. This photograph is from the late-nineteenth to mid-20th century. By the late-20th century,increasing light pollution had meant that the observatory was no longer used for active research,and was instead used mainly for public education programmes
Licence : Droits gérés
Crédit: Science Photo Library / Royal Astronomical Society
Taille de l’image : 3729 px × 4724 px
Model Release : Non requis
Property Release : Non requis
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