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Negative - Timeball Tower, Williamstown Image Reg. No: MM 059422

Summary:
The timeball tower at Williamstown. A telegraph signal from Melbourne Observatory at precisely 1pm each day lowered the brass ball. This allowed ships in Hobson's Bay to correct their chronometers -- essential for safe navigation. The timeball was erected on this tower in 1861.
Description Of Content:
TIME BALL ASTRONOMY INSTRUMENTS AND OBSERVATORIES
Discipline: Technology

More information

Themes this item is part of: Melbourne Observatory & Standard Time in Victoria, Melbourne Observatory Collection, Public Life & Institutions Collection, Positional Astronomy at Melbourne Observatory, Weights & Measures at Melbourne Observatory, Astrographic Catalogue, Transits of Venus, 1874 & 1882, Buildings at Melbourne Observatory, Star Observations & Personal Equation, Meteorology at Melbourne Observatory, 1863-1908, Williamstown Observatory, 1853-1863, Melbourne Observatory, 1863-1944, Geodetic Survey of Victoria, 1858-1872, Geodetic Survey of Victoria, 1858-1872
Primary Classification: HOROLOGY
Secondary Classification: Timeballs
Tertiary Classification: australia
Format: Negative - Copy: Black & White
Place Depicted: Williamstown, Victoria, Australia
User: Williamstown Observatory, Williamstown, Victoria, Australia, 1861-1863
User: Melbourne Observatory, South Yarra, Victoria, Australia, 1863-1926

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