Photometric Observations Made Principally with the Equatorial Telescope of Fifteen Inches Aperture During the Years 1877-79
Photometric Observations Made Principally with the Equatorial Telescope of Fifteen Inches Aperture During the Years 1877-79Edward Charles Pickering
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Photometric Observations Made Principally with the Equatorial Telescope of Fifteen Inches Aperture During the Years 1877-79

Photometric Observations Made Principally with the Equatorial Telescope of Fifteen Inches Aperture During the Years 1877-79

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