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The 200" Disk and the Hale Reflecting Telescope: Archives and Special Collections

Find books, articles, and archival materials on the 200" disk installed in the Hale Telescope at the Mount Palomar Observatory. For more information, please search our library catalog or contact our Ask a Librarian service.

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Interlibrary Loan

Interlibrary Loan (ILL) is a cooperative library service that allows you to borrow materials through your local library.

For more information visit our ILL page or e-mail ILL@cmog.org.