Date of Birth: 
Place of Birth: Ambronay, Auvergne-Rhône-Alpes, France
About Louis Thollon
- Louis Thollon (May 2, 1829 – April 8, 1887) was a French astronomer. He was born in Ambronay, France.
- Beginning in 1881, Thollon joined the staff of the new Nice Observatory where he undertook a long-term observation program of the Sun using a spectroscope of his own design.
- In the process, he recorded a solar spectrum consisting of 3,000 absorption lines in the optical band.In 1882, he joined André Puiseux on an expedition to Egypt to observe the solar eclipse on May 17.
- The same year he traveled to Portugal to watch the Venus transit, but met with disappointment.
- During the 1886 Mars opposition, he assisted the observatory director, Henri Perrotin, in observing the planet with a 15 in (38 cm) reflecting telescope.
- Both men reported that they spotted canali on the surface of the planet, apparently confirming the 1877 discovery of these features by Italian astronomer Giovanni Schiaparelli.
- Thollon died in Lyon, France.
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Benoît Prieur
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| Description | French Wikimedian, software engineer, science writer, sportswriter, correspondent and radio personality | ||
| Date of birth | 19 August 1975 | ||
| Location of birth | Auxerre | ||
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Thank you to indicate this credit line next to the image in case of reuse: I'd appreciate if you could mail me (agamitsudo at gmail.com) if you use this picture out of the Wikimedia project scope |
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