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Photos: Casting Mirror No. 5 for the Giant Magellan Telescope

Nearly There

Giant Magellan Telescope – GMTO Corporation

Mirror Lab staff finish placing the first layer of glass on GMT mirror 5’s mold.

Checking for Space

Giant Magellan Telescope – GMTO Corporation

Mirror Lab staff review the glass placed in the mold, checking for space for the last pieces of glass for GMT mirror 5.

Still Checking

Giant Magellan Telescope – GMTO Corporation

A staff member takes a closer look at the glass chunks in mirror 5’s mold, checking for space.

The Final Piece

Giant Magellan Telescope – GMTO Corporation

Mirror Lab staffer Linda Warren places the last piece of glass into the mold.

Nearly 20 Tons of Glass

Giant Magellan Telescope – GMTO Corporation

The GMT mirror 5 mold filled with 38,580 lbs. (17,500 kilograms) of glass, ready for the lid to be placed.

Ready for the Lid: Top View

Giant Magellan Telescope – GMTO Corporation

The glass-filled mirror mold, seen from above.

Lowering the Lid

Giant Magellan Telescope – GMTO Corporation

The lid of the furnace for GMT mirror 5 positioned over the furnace, ready to be lowered in place.

Ready to Cast

Giant Magellan Telescope – GMTO Corporation

The GMT mirror 5 furnace fully assembled and ready to start.

University of Arizona Casting Crew

Giant Magellan Telescope – GMTO Corporation

The University of Arizona casting crew. From left to right: Ray Perry, Damon Jackson, Linda Warren, Stuart Weinberger, Philip Muir, Randy Lutz, Pat Peak, John Martin, Diana Vargas, Britt Kayner.

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