BirthdaySeptember 19, 1926

Celebrity biographies

  1. About Pierre Janssen

    Full name: Pierre Janssen
    Also known as: Pierre Jules Cesar Janssen, Janssen, Pierre Jules Cesar
    Professions: French astronomer

  2. Pierre Janssen Death information

    Died: Monday, 23rd of December, 1907 (Age: 18)

  3. Pierre Janssen Biography

    Pierre Jules César Janssen (22 February 1824 – 23 December 1907), 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.

  4. Pierre Janssen Family

  5. Sources