Jean Elias Benjamin Valz
In 1835 he hypothesized that the observed orbital disturbances of Halley's Comet are caused by the gravitational effects of a planet beyond Uranus . The planet Neptune was not yet discovered at that time.
Valz set up a private observatory at his home in Nimes. When he took over the post of director of the Marseille Observatory , he left his house to the young astronomer Joseph Jean Pierre Laurent , who discovered the asteroid (51) Nemausa from there .
On December 17, 1832, he became a corresponding member of the Académie des Sciences .
- http://www-obs.cnrs-mrs.fr/tricent/astronomes/valz.htm ( Memento from September 27, 2007 in the Internet Archive ) (French)
- Publications by B. Valz in the Astrophysics Data System
- W. Tempel: Death notice. Astronomische Nachrichten, vol. 69 (1867), p. 13 (obituary to JEB Valz)
- List of former members since 1666: Letter V. Académie des sciences, accessed on March 9, 2020 (French).
|SURNAME||Valz, Jean Elias Benjamin|
|BRIEF DESCRIPTION||French astronomer|
|DATE OF BIRTH||May 27, 1787|
|PLACE OF BIRTH||Nîmes , France|
|DATE OF DEATH||April 22, 1867|