Jules JanssenFrench, 1824–1907Zonnenvlekken
May one see it?
Unknown
Where is “Zonnenvlekken” now? Collection: Rijksmuseum, Amsterdam. Unknown.
Amsterdam, Netherlands
The owner is known; whether it is on view today is not.
- Source
- The museum
Particulars
- Accession number
- RP-F-F25614-B-1
What it shows
In the catalog
Sources
- Rijksmuseum
- Image: Rijksmuseum — public domain
Meanwhile, in the life of Jules Janssen
The whole life9 June 1872 – 26 July 1883 · Membership
Accademia Nazionale dei Lincei
1883
Eclipse expedition to the Caroline Islands
In 1883 a solar-eclipse expedition took Janssen to the Caroline Islands.
26 July 1883 · Membership
Accademia Nazionale dei Lincei
1884
The International Meridian Conference
In 1884 Janssen took part in the International Meridian Conference.
after 1885
Studies the oxygen spectrum under high pressure
After 1885 Janssen took up the absorption spectrum of oxygen at pressures above 50 atmospheres and found the conditions under which it becomes a banded spectrum.
6 June 1887 – 31 December 1888
Post: president of the French Academy of Sciences
