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Johann Georg Tralles discovers the Great Comet of 1819, (C/1819 N1). It is the first comet analyzed using polarimetry, by François Arago.
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Johann Georg Tralles
German mathematician and physicist (1763–1822)
Johann Georg Tralles was a German mathematician and physicist.Source: Wikipedia (CC BY-SA)
Great Comet of 1819
Comet discovered by German astronomer Johann Georg Tralles
The Great Comet of 1819, officially designated as C/1819 N1, also known as Comet Tralles, was an exceptionally bright and easily visible comet, approaching an apparent magnitude of 1–2, discovered July 1, 1819 by the German astronomer Johann Georg Tralles in Berlin. It was the…Source: Wikipedia (CC BY-SA)
Polarimetry
Measurement and interpretation of the polarization of transverse waves
Polarimetry is the measurement and interpretation of the polarization of transverse waves, most notably electromagnetic waves, such as radio or light waves. Typically polarimetry is done on electromagnetic waves that have traveled through or have been reflected, refracted or…Source: Wikipedia (CC BY-SA)
François Arago
French physicist and astronomer (1786–1853)
Dominique François Jean Arago, known simply as François Arago, was a French mathematician, physicist, astronomer, freemason, supporter of the Carbonari revolutionaries and politician.Source: Wikipedia (CC BY-SA)