page_title: Astronomical Society of Victoria
section_title: Great Melbourne Telescope Restoration
hierarchical_section_title: Astronomical Society of Victoria / Activities / Great Melbourne Telescope Restoration
caption_attribution_description: English: The Great Melbourne Telescope, at one time the second largest telescope in the world, being built in 1869 after it was shipped in pieces from the works of Howard Grubb, Dublin.
context_page_description: The Astronomical Society of Victoria is an amateur astronomy club in the state of Victoria, Australia. It was founded in 1922, making it one of the oldest such clubs in the country, and with some 1000 members it claims to be one of the largest amateur astronomy organisations in the southern hemisphere. Membership is open to all with an interest in astronomy, and the society caters for people with a wide range of ages, backgrounds, abilities and interests.
  The society has sections dedicated to providing support for members interested in specific aspects of astronomy, including astro-photography, comets, radio astronomy, solar observing, variable stars, and deep sky observing. It owns a suburban property which is used as the Lodge and Observatory / workshop, and it also runs the Leon Mow Dark Sky Site, located north of Melbourne. Its major project is the restoration of the Great Melbourne Telescope.
context_section_description: For over 50 years the ASV has conducted tours and played a major role in the care of the Melbourne Observatory, in the Royal Botanic Gardens. This has now been supplemented with the Great Melbourne Telescope (GMT) Restoration Project, working closely with Museum Victoria and Royal Botanic Gardens to restore the telescope to working order so that it may be used for education and public viewing.
  The telescope itself has great historical significance; at 48 inches (120 cm) it was the largest fully steerable telescope in the world when it was built in 1869, and it was the first telescope that large to be placed on an equatorial mounting, enabling it to track the stars accurately as they appeared to move across the sky. It was "hailed as a masterpiece of engineering", requiring only one assistant to control its movement. Even the rival Sydney Observatory referred to it as "one of the most important artefacts in the history of Australian science." 
  The telescope was upgraded by adding photographic equipment in 1872, moved to Mount Stromlo Observatory near Canberra in 1946, and rebuilt with a modern mirror in the late 1950s. As recently as 1993, it was upgraded again to take part in the world's first observations of MACHOs as evidence for the existence of dark matter. It was badly damaged in the 2003 Canberra bushfires – the temperatures were so high that the aluminium dome itself caught fire and melted onto the telescope, the Pyrex mirror shattered, and steel struts sagged.
  In 2008, Museums Victoria  brought the telescope's remains to Melbourne and began assembling expert volunteers.
  In mid 2009 a group of volunteers from the ASV began "Project Phoenix" to restore the telescope. The restoration project has required a worldwide scavenger hunt to find suitable parts. The project will incorporate bringing the telescope's optical, mechanical and electrical systems into line with current best practice.
  After nearly five years weighing up different proposals, engineering work commenced in late 2013 thanks to a $70,000 grant from the Copland Foundation. The Victorian government later committed $600,000 for the first stage of the restoration, and private benefactors also provided financial support.  Computer models were developed to design the supporting frame under a variety of extraordinary load conditions including wind and earthquake. The telescope-bearing frame was constructed and set up in the workshops in November 2013.  In November 2019, the main structure of the telescope was reassembled for the first time in 74 years.
caption: The Great Melbourne Telescope being built in 1869 after it was shipped in pieces from the works of Howard Grubb, Dublin.
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