Annals of the Astronomical Observatory of Harvard College, Vol. XXVIII.-Part I. Spectra of Bright Stars
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27 mai 2018
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Cărți de Edward C. Pickering
Observations of the Transit of Venus: December 5 and 6, 1882, Made at the Harvard College Observatory, Pp. 15 - 40
Autor Edward C. Pickering
26 mai 2018
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