An Etymological Dictionary of Astronomy and Astrophysics
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فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 1 Search : plate scale
plate scale
  مرپل ِ پلاک   
marpel-e pelâk

Fr.: échelle de plaque   

The scale factor for converting linear measure on a photographic plate to angular measurement on the sky.

→ plate; → scale.