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The top documents tagged [objective prism plates]
Collections CTIO plates: 4-m, Curtis Schmidt and miscellaneous slit spectra from 1967- 1998 Warner and Swasey plates: direct and objective prism plates
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A Center for Archiving and Digitization of Photographic Plates at the Pisgah Astronomical Research Institute J. D. Cline, M. W. Castelaz (Pisgah Astronomical
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8. The Classification of Stellar Spectra Goals :
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