Pierre Janssen, Date of Birth, Place of Birth, Date of Death


Pierre Janssen

French astronomer

Date of Birth: 22-Feb-1824

Place of Birth: Paris, Île-de-France, France

Date of Death: 23-Dec-1907

Profession: astronomer

Nationality: France

Zodiac Sign: Pisces

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About Pierre Janssen

  • Pierre Jules César Janssen (22 February 1824 – 23 December 1907), also known as Jules Janssen, was a French astronomer who, along with English scientist Joseph Norman Lockyer, is credited with discovering the gaseous nature of the solar chromosphere, and with some justification the element helium.

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