Astronomical and Physical Researches: Made at Mr. Wilson's Observatory, Daramona, Westmeath (Classic Reprint)
Miembro desde 1996
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Miembro desde 1996
Título: Astronomical and Physical Researches: Made ...
Editorial: Forgotten Books
Condición del libro:New
Excerpt from Astronomical and Physical Researches: Made at Mr. Wilson's Observatory, Daramona, Westmeath
In 1871 a small observatory was built in the garden of Daramona, and provided with a 12-inch equatorial reflecting telescope, by Sir Howard Grubb. There was also attached a small room which could be used for photography; it contained a small transit instrument which I made in the workshop, and a sidereal clock. Except a few photographs of the moon, taken with wet plates, and some experiments on solar radiation with thermo piles, little was done with this instrument. In 1881 I decided to build a new and large observatory, which would be attached to the house.
A 24-inch silver-on-glass mirror, of 10 feet 6 inches focus, was ordered from Sir Howard Grubb, and it was erected on the old mounting. This was not found satisfactory, as the mounting was not stiff or heavy enough to carry the extra weight. In 1892 I decided to have the 24-inch mirror remounted by Sir Howard Grubb, and provided with his best form of driving clock and electrical control. The new mounting has given the greatest satisfaction. The position of the new observatory is, by the Ordnance Survey Map -
Latitude 53° 41' 12' N.
Longitude 0ͪ 29ͫ 586ˢ W.
In 1889 a physical laboratory was built adjoining the observatory, and a photographic dark room for the development of the astronomical plates. Adjoining this room is also the workshop, which contains a 6-inch Whitworth screw-cutting lathe, a shaping machine, and a drilling machine. These tools are driven by a 1½ N. H. P. Crossley Gas Engine.
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