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Old 15-02-2020, 06:10 PM
gary
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Join Date: Apr 2005
Location: Mt. Kuring-Gai
Posts: 5,927
Quote:
Originally Posted by Sunfish View Post
Very beautiful place. The Japanese telescope on Mauna Kea ,I remember reading , is also a system relying on computerised actuator control to keeps its mirror within minute tolerances and is also an RC although a single 8m mirror I think. I understood this used an actuator system developed after much research in Japan. I think I have seen an online video of the development Are the systems similar?
Hi Ray,

Thanks for your various comments throughout the thread which is
appreciated.

The remarkable thing about the Subaru primary is that it is monolithic with
an 8.2m diameter.

The Subaru solves a similar problem in that the optics themselves are computer controlled.

All the next generation large telescopes are opting for the segmented
approach (e.g. GMT, TMT, ELT)

In any case digital computers being crucial to the optics ability
to accurately focus light is here to stay.

Last edited by gary; 16-02-2020 at 08:45 AM.
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