. On this day in 1800 – June 17th – William Parsons, Third Earl of Rosse, was born in York, England.
As well as being a skilled engineer and ingenious scientist, he was a dedicated astronomer who constructed a 72-inch (1.83 metre) diameter reflecting telescope at Birr Castle, Parsonstown in Ireland during the 1840s. Known as the Leviathan of Parsonstown, this huge telescope was larger than any made previously and the largest in the world for several decades, and enabled him to discover the spiral nature of many nebulae.
. On this day in 1710 – June 21st – Scottish telescope maker and astronomer, James Short, was born in Edinburgh.
Short produced the first telescopes with nearly distortionless mirrors, and was the principal British collator and computer of the Transit of Venus observations. They were made around the world on 6 June 1761.
It was decided that the observatory should be built so that the Paris meridian passed through the center of the building, dividing it into two symmetrical parts. Built by order of King Louis XIV, the Paris Observatory was the first national observatory.
We take forum safety very seriously here at BellaOnline. Please be sure to read through our Forum Guidelines. Let us know if you have any questions or comments!