Joseph Helffrich

Joseph Helffrich (born January 12, 1890 in Mannheim as Josef Helffrich ; † December 26, 1971 in Mannheim-Neckarau ) was a German astronomer .

Life

Helffrich was a son of the businessman Christian Helffrich. He studied at the University of Heidelberg , received his doctorate there in 1913 and worked for the State Observatory Heidelberg-Königstuhl .

Helffrich discovered the following asteroids , among others :

• Galilea (discovered February 14, 1910)
• Ernestina (discovered March 5, 1910)
• Hela (discovered June 5, 1910)
• Auravictrix (discovered June 5, 1910)
• Orolia (discovered July 12, 1910)
• Alauda (discovered July 16, 1910)
• Hirundo (discovered October 9, 1910)
• Raphaela (discovered February 3, 1911)
• Fringilla (discovered February 3, 1911)
• Luscinia (discovered April 18, 1911)
• Ulula (discovered May 18, 1911)

All asteroids are in the object of the so-called main belt . The asteroid (2290) Helffrich was named after him.

literature

• Joseph Helffrich: Investigations in the star cluster h Persei after recordings with the Waltz reflector of the Heidelberg observatory. Braun, Mannheim 1913, 23 p. (Heidelberg, Naturwiss.-math. Diss. Of November 17, 1913)
• Lutz D. Schmadel : Dictionary of Minor Planet Names . 5th ed.Springer, Berlin 2003, ISBN 3-540-00238-3 (engl.)

Individual evidence

1. ↑ Birth register of StA Mannheim, No. 93/1890
2. ↑ Death register StA Mannheim-Neckarau, No. 745/1971
3. ^ Lutz D. Schmadel : Dictionary of Minor Planet Names . Fifth Revised and Enlarged Edition. Ed .: Lutz D. Schmadel. 5th edition. Springer Verlag , Berlin , Heidelberg 2003, ISBN 978-3-540-29925-7 , pp. 186 (English, 992 pp., Link.springer.com [ONLINE; accessed on July 29, 2019] Original title: Dictionary of Minor Planet Names . First edition: Springer Verlag, Berlin, Heidelberg 1992): “1932 CD1. Discovered 1932 Feb. 14 by K. Reinmuth at Heidelberg ”