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I think all suggested accounts of the origin of the Solar System are subject to serious objections. The conclusion in the present state of the subject would be that the system cannot exist.
Harold Jeffreys

Musique Valere Leroy


French Magazines

 Ciel & Espace

N°437 (october 2006), p102

Saturn on January 25 2006 with the LX200 10"


 Astronomie Magazine

N°98 (February 2008), "Observation" rubric, article "Saturne, la planète multiple", p25

Saturn on January 25 2006 with the LX200 10"
N°87 (February 2007), "Observation" rubric, article "Saturne: un monde d'observations", p20

Saturn on April 6 2006 with the LX200 10"
N°81 (July/August 2006), "Bravo!" rubric, p46 and 48

Saturn on January 25 & April 6 2006 with the LX200 10"

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 Astronomie Magazine

N°103 (July/August 2008), p88

Astronomie Magazine's competition in order to celebrate the 100th issue of this magazine.

prize number 11 (Baader Hyperion 8mm eyepiece)

The discovery of the planet Neptune was a triumph of mathematics. While studying the orbit of the planet Uranus, Urbain Leverrier realized that its perturbations suggested the presence of an unknown planet in an orbit beyond that of Uranus. Leverrier promptly calculated where the planet should be found. On September 23, 1846, the astronomer Johann Galle (in Berlin) looked at the indicated spot - and discovered Neptune in less than an hour.