Details about the transit of Mercury .....

20 avril 2016

On Monday, May 9th, 2016 will arise a rare astronomical phenomenon : the passage of Mercury in front of the Sun.

The Paris Observatory dedicates a complete Web site on the event : official ephemerides, advice(councils) of observations, the future spatial mission of the ESA of exploration of Mercury, educational index cards(forms) to be downloaded, panels(signs) to be printed for the classes...