P.J.C. Janssen

Pierre Jules César Janssen, also known as Jules Janssen, was a French astronomer who, along with the English scientist Joseph Norman Lockyer, is credited with discovering the gaseous nature of the solar chromosphere, and with some justification the element helium.

Born:

Feb 22, 1824 In France

Movie/TV Credits:

1

First Appeared:

In the movie The Photographical Congress Arrives in Lyon 1895-06-12

Latest Project:

Movie The Photographical Congress Arrives in Lyon 1895-06-12