The eclipse of June 10, 2021 is the sixteenth annular eclipse of the 21st century and the first of the year 2021. Within the Paris Observatory - PSL, the Institute of Celestial Mechanics and Ephemeris Calculation (IMCCE) provides the circumstances.
The astronomical phenomenon will manifest itself in a 520 km wide band, running across the globe from northeastern Canada to the far east of Russia, passing through northwestern Greenland and the North Pole. It will travel at a speed of 8 190 km/h. At the maximum of the eclipse, on the line of centrality, the obscuration will be 87.8%.
The inhabitants whose cities are exactly in the axis of the phenomenon, will be among the most privileged observers and will see the Moon slowly slip in front of the Sun to transform it into a thin luminous ring before gradually moving away from it.
Animation representing the displacement at earth scale of the visibility zone for the annular solar eclipse of June 10, 2021.
The eclipse will also be visible in its partial phase in northwestern North America, the North Atlantic Ocean, including the overseas territory of St. Pierre and Miquelon, much of Europe, including metropolitan France, and much of northern Asia.
Visibility in France
If the phenomenon is not rare, the chance to contemplate it in a given point of the Earth is low. In France, the last partial eclipse of the Sun was on March 20, 2015 Revivre l’éclipse partielle en replay. For the next ones, we will have to wait until October 2022 or March 2025.
Whatever the characteristics, it is always a beautiful natural spectacle for those who have the opportunity to observe it.
In France, the solar eclipse of June 10, 2021 will be visible partially in Saint-Pierre-et-Miquelon, and everywhere in France where the maximum will occur between 11:55 and 12:20 depending on location. Its duration will be about 2 hours.
Table of schedules
The occultation of the solar disk will vary from 0.2% to 17.8% depending on the region of France, where it will not affect the ambient brightness, and up to 67% in Saint-Pierre-et-Miquelon.
The eclipse will be most visible in Brittany (with an occultation of 17.8% in Brest) and in northern France (15.9% in Lille). In the South, the conditions of observations will be less favorable, with an occultation of 0.2% in Ajaccio and 2.3% in Nice.
| An eclipse calculation service Within the Observatoire de Paris - PSL, the IMCCE provides an interactive map that gives the local circumstances of the solar eclipse of June 10, 2021. 
Carte interactive
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A beautiful natural spectacle in perspective provided that the sky is clear.
IMPORTANT : Never observe the Sun without protection !
You should never observe the Sun without special protection, otherwise you run the risk of serious, if not irreparable, retinal damage.
3 methods to follow the partial eclipse without risk, any other means (sunglasses...) being to proscribe.
- The best method to follow the partial eclipse without risk is that of an observation by projection on a screen. The "solarscope" is a practical and inexpensive means (device available in specialized shops).
- It is possible to follow the occultation with a magnifying astronomical instrument. But this one must be obligatorily provided with a solar filter of density 5 of the type "mylar", to avoid any irreversible ophthalmic accident.
- It is also possible to observe the phenomenon with special "eclipse" glasses (available in specialized shops).
To be followed, the live on the D-day
To allow everyone to contemplate this part of the eclipse without risk, the scientists of the Observatoire de Paris - PSL are pointing their instruments at the Sun :
a spectroheliograph, located on the Meudon site, will observe in the H alpha radiation,
a radio-heliograph, consisting of a set of antennas deployed in Nançay (in the Cher department), will observe in the radio domain.
See you from 11 am on the YouTube channel of the Observatory