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" When I made the first attempt in 1887, with the assistance of Professor Scheiner, to record photographically the displacements of the lines in stellar spectra, and then to measure them as accurately as possible on the spectrograms, it very soon appeared... "
Publications of the Astronomical Society of the Pacific - Page 224
by Astronomical Society of the Pacific - 1900
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The Astrophysical Journal, Volume 11

1900 - 474 pages
...lacking in stability. When I made the first attempt in 1887, with the assistance of Professor Scheiner, to record photographically the displacements of the...error, which in the Greenwich observations averaged ±22 km for an evening, being brought down in the Potsdam observations to an average of ± 2.6 km....
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Handbuch der Astrophysik: Das sternsystem. 2. teil. 1. The radial velocities ...

Gustav Eberhard, Arnold Kohlschütter, Hans Ludendorff - 1928 - 498 pages
...enormous improvement. In 1887 VOGEL at Potsdam, with the assistance of SCHEINER, made the first attempt to record photographically the displacements of the lines in stellar spectra, and to measure them as accurately as possible on the spectrograms. The attempt was successful, and since...
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The Analysis of Starlight: One Hundred and Fifty Years of Astronomical ...

J. B. Hearnshaw - 1990 - 554 pages
...Vogel himself (32): When I made the first attempt in 1887, with the assistance of Professor Scheiner, to record photographically the displacements of the...constructed in 1888; the probable error, which in the Sjirrtrum rtrs Sirius. Spectrum dr.s Prorron. Spectrum Am Kiqrl. .Spectrum Aea Aret\ir H . ('. Vixjfl,...
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