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Astronomic Latitude and Longitude
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Coast-Geodetic-Survey
Geodesy
Astronomic Latitude and Longitude
Geodesy
Charles Schott with Davidson meridian instrument.Eclipse expedition of 1870
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Meridian telescope
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Zenith telescope at the Ukiah Latitude Observatory.Showing latitude levels.Part of international effort to observe small changes in latitude
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Zenith telescope at the Ukiah Latitude Observatory.Wooden frame built around supporting stand.Protecting instrument from accidental disturbance.Part of international effort to observe small changes in latitude
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Bamberg astronomical transit.In use 1914 - 1960.Used for both latitude and longitude observations
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Portable observing tripod made of poplar.Astro party of C. V. Hodgson
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Lightweight aluminum observing tripod.Astro party of C. V. Hodgson.Note remains of old observing stand to left
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Assembling lightweight aluminum observing tripod.Astro party of C. V. Hodgson
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Observing longitude with Bamberg broken telescope instrument.Astro party of George D. Cowie
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Ed Brown's astro outfit.Astro party of E. J. Brown
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World longitude network setup at Manila.Note radio gear to receive time ticks.Chronograph is drum-like instrument to right
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Bamberg transit set up at Station NIU Hawaii.Astro party of E. J. Brown
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Bamberg transit set up.Astro party of E. J. Brown.Part of World Longitude Campaign
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Short wave radio recorder.Astro party of E. J. Brown.Part of World Longitude Campaign
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E. J. Brown using Davidson meridian telescope.Astro party of E. J. Brown.Part of World Longitude Campaign
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E. J. Brown at astro setup checking chronograph.Astro party of E. J. Brown
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Early morning computing - verifying last night's work.Astro party of Ralph Pfau
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Station NIU during reobservation of World Longitude stations.Looking for evidence of continental drift.Instruments too crude to measure small earth movements.Astro party of Joseph Lushene
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Joseph Lushene operating long-wave radio receiver.Attempting to receive time ticks.Astro party of Joseph Lushene
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Bamberg transit and equipment.Astro party of Charles Whitten
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