The Nasmyth platform is used to allow technicians and scientists to gain access to install and change out various instruments including cameras on the rotating Nasmyth wheel shown in this photo.
Nasmyth platform nearing its final position.
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1) Viewing through the Nasmyth port of the center section. Clyde Taylor is installing
a counterweight representative of the mirror weight to facilitate testing in our shop.
2) Nasmyth bearing assembly in which the instrument wheel is mounted.
3) Textured platform surface.
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