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Giant Magellan Telescope

Giant Magellan Telescope

Nearly 1,700 unique alumina-silicate fiber refractory cores go into a mirror created at the UA Mirror Lab.

October 03, 2014 2:16 pm
GMT mirror casting at UA

GMT mirror casting at UA

GMT3: The assembly of the oven tub walls and flooring for the rotating oven that will contain the mold and 38,000 pounds of Ohara borosilicate glass takes the Mirror Lab casting team several months to complete. The top for the oven is stored above (upper right in photo), and will be lowered …

August 24, 2013 4:08 pm
GMT mirror casting at UA

GMT mirror casting at UA

GMT3: Members of the Mirror Lab casting team load 38,500 pounds of Ohara E6 borosilicate glass into the oven mold in preparation for spin casting the 8.4 meter diameter mirror blank. The photo was taken shortly before the first layer of glass was completed. The entire proceedure takes three …

August 24, 2013 4:08 pm
GMT mirror casting at UA

GMT mirror casting at UA

GMT2: Nearly 1700 unique hexagonally shaped alumina-silicate fiber refractory cores are installed to form the 8.4 meter diameter oven mold for this second mirror casting for the Giant Magellan Telescope (GMT). Randy Lutz, manager of the Mirror Lab casting team, installs each of the cores ind…

August 24, 2013 4:07 pm
GMT mirror casting at UA

GMT mirror casting at UA

GMT2: The Steward Observatory Mirror Lab casting crew inspects over 38,000 pounds of E6 borosilicate glass pieces for every 8.4 meter diameter mirror blank cast. Randy Lutz, manager of the Lab casting team, uses polarized lighting and glasses to verify the quality of each glass piece shipped…

August 24, 2013 4:07 pm
GMT mirror casting at UA

GMT mirror casting at UA

GMT2: The Steward Observatory Mirror Lab casting oven is being prepared in this view from above for final electrical, mechanical, and computer control systems testing before the oven heaters are turned on and rotation begins. Members of the Lab technical stff are conducting electrical checks…

August 24, 2013 4:07 pm
Mirror Lab's hardest job is now complete

Mirror Lab's hardest job is now complete

Some 40 people work at the Steward Observatory Mirror Lab at the University of Arizona, where this $23 million mirror for the Giant Magellan Telescope in Chile was recently completed. The project includes eight mirrors at a cost of $120 million.

October 28, 2012 12:00 amLoading…

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