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Hood - South Collimator, Melbourne Observatory, circa 1880s Object Reg. No: HT 27291

Summary:
Hood for the South Collimator Field Lens at Melbourne Observatory, circa 1880s. The South Collimator was erected some distance south on the meridian line of the 8 inch transit telescope, to assist in testing the soundness of the telescope's piers and pivots, or any other factor that might disturb the accuracy of measurements with the telescope.
Description:
Black painted metal box with rusted exterior, hinged cover and pentagon-shaped side profile. There are six small lugs with holes attached to the interior walls, possibly for latching the hood over the lens.
Acquisition Information:
Donation from Victoria: Local Government Department Office of Trade Measurement (formerly Weights & Measures Branch), 1994
Discipline: Technology

More information

Tagged with: astronomy, telescopes
Themes this item is part of: Positional Astronomy at Melbourne Observatory, Weights & Measures at Melbourne Observatory, Melbourne Observatory & Standard Time in Victoria, Astrographic Catalogue, Transits of Venus, 1874 & 1882, Buildings at Melbourne Observatory, Star Observations & Personal Equation, Meteorology at Melbourne Observatory, 1863-1908, Melbourne Observatory, 1863-1944, Geodetic Survey of Victoria, 1858-1872, Melbourne Observatory Collection, Science & Measurement Collection
Primary Classification: ASTRONOMY
Secondary Classification: Research
Tertiary Classification: telescope components
Place & Date Used: Melbourne Observatory, South Yarra, Victoria, Australia, 1880-1945

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