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Hermann Carl Vogel ( / ˈfoʊɡəl /; German: [ˈfoːɡl̩]; 3 April 1841 – 13 August 1907) was a German astrophysicist. He was born in Leipzig, Kingdom of Saxony. From 1882 to 1907 he was director of the Astrophysical Observatory, Potsdam. He made extensive discoveries using spectral analysis of the stars.
Apr 16, 2024 · Hermann Karl Vogel (born April 3, 1842, Leipzig—died Aug. 13, 1907, Potsdam, Ger.) was a German astronomer who discovered spectroscopic binaries — double-star systems that are too close for the individual stars to be discerned by any telescope but, through the analysis of their light, have been found to be two individual stars rapidly revolving ...
- The Editors of Encyclopaedia Britannica
Vogel was a pioneer in the use of astronomical spectroscopy and photography. He measured the solar rotation and showed that the solar photosphere shared the rotational motion inferred from sunspots observations. He also carried out some of the first spectroscopic studies of other planets in the solar system.
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Vogel made spectroscopic analyses of stars, planets, comets, and the sun. He was the first to demonstrate the sun’s rotation by measuring Doppler shifts of its receding and approaching limbs. He made detailed tables of the solar spectrum and attempted spectral classification of stars.
Apr 3, 2019 · Hermann Carl Vogel, a German astronomer, was born Apr. 3, 1841. Vogel was a pioneer in applying the new science of spectroscopy to analyzing the motion of celestial bodies. Johann Doppler had discovered his famous Doppler effect back in the 1840s, revealing that the wavelengths of sound are lengthened or shortened, depending on whether an ...
Bruce Medalist Profile: Hermann Carl Vogel from p.173 Lick refractor, the world's largest tele scope. Within a few years W.W. Campbell at Lick would begin the photographic radial velocity program that eclipsed all others. Meanwhile Vogel and his colleagues oversaw construction of a 32-cm (12.8-inch) refractor designed specifically for ...
Having been appointed as an observer to the future Potsdam Observatory, Vogel became increasingly interested in spectrophotometry. In 1876 he utilized this technique to study Nova Cygni. His results provided the first evidence that changes occur in the spectrum of a nova during its fading phase.
