Julius Franz (astronomer)
Julius Heinrich Georg Franz (born June 28, 1847 in Rummelsburg , Western Pomerania , † January 28, 1913 in Breslau ) was a German astronomer .
Franz was the son of a medical councilor and district physician . He studied at the Universities of Greifswald , Halle and Berlin the subjects astronomy and mathematics and could in 1872 this study in 1872 successfully with a promotion to complete. In his dissertation he dealt with the Foucault pendulum ( About the Foucault pendulum ).
In 1874 he became an astronomer at the Neuchâtel observatory in Switzerland . In 1875 he completed his habilitation there at the University of Neuchâtel . From 1877 he worked as an observer at the Königsberg observatory . In 1882 he led the German expedition to Aiken in South Carolina to observe the Venus Passage . In 1889 he completed his habilitation at the University of Königsberg , from 1893 he taught there as an associate professor. from 1897 he held the chair for astronomy at the University of Breslau and director of the university observatory there.
From 1885 he was a member of the German Academy of Sciences Leopoldina . Franz dealt primarily with the topography of the moon and provided detailed descriptions of numerous lunar craters . The moon crater Franz is named after him.
Franz was the father of the zoologist Victor Franz .
Publications (selection)
- The physical libration constants of the moon , 1889.
- The figure of the moon , 1899.
- The moon , 1906.
- The fringes of the moon , 1913.
literature
- Walther Killy (term): German biographical encyclopedia . Saur, Munich 1990, p. 414.
- Willi Jahn: Franz, Julius. In: New German Biography (NDB). Volume 5, Duncker & Humblot, Berlin 1961, ISBN 3-428-00186-9 , p. 372 f. ( Digitized version ).
- DBE , 2nd edition, Volume 3, Munich 2006, p. 472.
Web links
- Literature by and about Julius Franz in the catalog of the German National Library
- J. Franz publications in the Astrophysics Data System
- P. Neugebauer: Julius Franz. Astronomische Nachrichten, Vol. 193 (1913), p. 443. (Obituary)
- ALC: Julius Heinrich G. Franz. Monthly Notices of the Royal Astronomical Society, Vol. 74 (1914), p. 281. (Obituary, English)
personal data | |
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SURNAME | Franz, Julius |
ALTERNATIVE NAMES | Franz, Julius Heinrich Georg |
BRIEF DESCRIPTION | German astronomer |
DATE OF BIRTH | June 28, 1847 |
PLACE OF BIRTH | Rummelsburg , Western Pomerania |
DATE OF DEATH | January 28, 1913 |
Place of death | Wroclaw |