Julius Scheiner
Julius Scheiner (1858–1913) was a German astronomer, born in Cologne and educated at Bonn. He became assistant at the astrophysical observatory in Potsdam in 1887 and its observer in chief in 1898, three years after his appointment to the chair of astrophysics in the University of Berlin. Scheiner paid special attention to celestial photography and wrote Die Spektralanalyse der Gestirne (1890); Lehrbuch der Photographie der Gestirne (1897); Strahlung und Temperatur der Sonne (1899); Der Bau des Weltalls (1901); third edition, 1909). In 1899 he began the publication of the Photographische Himmelskarte; Zone +31° bis +40° Deklination.
He is also credited with developing the first system for measuring the sensitivity of photographic emulsions in 1894,[1] Scheinergrade, which also inspired the later DIN 4512 standard to measure film speeds.
Further reading
References
- ↑ Martin Riat. Graphische Techniken - Eine Einführung in die verschiedenen Techniken und ihre Geschichte. E-Book, 3. German edition, Burriana, spring 2006 (), based on a Spanish book: Martin Riat. Tecniques Grafiques: Una Introduccio a Les Diferents Tecniques I a La Seva Historia. 1. edition, Aubert, September 1983, ISBN 84-86243-00-9.
External links
| Persondata |
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| Name |
Scheiner, Julius |
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| Short description |
German astronomer |
| Date of birth |
1858 |
| Place of birth |
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| Date of death |
1913 |
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This article incorporates text from a publication now in the public domain: Gilman, D. C.; Thurston, H. T.; Moore, F., eds. (1905). "article name needed". New International Encyclopedia (1st ed.). New York: Dodd, Mead.