| Date of Birth | 22-February-1824 | |
| Place of Birth |
Paris (ÃŽle-de-France, France, Seine) |
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| Nationality | France | |
| Also know as | Pierre Jules Cesar Janssen | |
| Profession | Astronomer | |
| 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. | ||
Awards by Pierre Janssen |
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| Check all the awards nominated and won by Pierre Janssen. | ||
1876
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