Astronomy for St Patrick’s day

To celebrate St Patrick’s day, the science museum in London has put up a webpage including some of the objects in its collection with Irish connections. They include an Orrery – a model of movements in the solar system – made for the fourth Earl Orrery in County Cork, an enormous mirror from the Leviathan telescope of Parsonstown, which was the largest in the world for seventy years, a smaller twenty-inch reflecting double telescope, built by Grubbs of Dublin, who also built telescopes now in operation at the University of London Observatory, and an astronomical take on a drop of the black stuff.

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