(Photo by Archivio)
- Wednesday 09 June 2021
On 10 June the sun will be the protagonist of the annular eclipse that will give a show in the Arctic area. The coverage of the solar disk by that of the moon, with the exception of a ring, can be perfectly observed only for some regions of Canada, Greenland and Russia. In Italy, the phenomenon will be visible for just 5% and it will be necessary to be patient until 2027 to witness a total solar eclipse. The eclipse of Thursday 10 June «from Italy will be visible only as a partial one, of a very modest entity», observes astrophysicist Gianluca Masi, head of the Virtual Telescope Project. In fact, “a darkening of the sun around 0.5% is expected for Siena and slightly better values as we move further north, up to 5% in Valle d’Aosta. From Perugia down, however, the phenomenon will be invisible ».
The solar eclipse occurs when the sun is obscured by the passage of the moon and the obscuration which can be partial or total. That of June 10 will take place when our satellite will be near the point of maximum distance from the Earth (apogee). The portion of the sky (ie its angular dimension) that it will occupy will therefore be smaller and the disk will not be able to cover the entire solar disk, leaving a “ring of fire” uncovered. “It is important to remember – underlines Masi – that the vision of the sun without specially made protections is dangerous and risks causing permanent damage to sight”. Just to allow everyone to view it safely, the eclipse will also be broadcast online from the Virtual Telescope site with contributions from the places where it will be fully seen.
Already next year, on October 25, Italy will see a new partial solar eclipse “but much” better “than this, with a sun coverage between 10 and 20%”, Masi specified. Instead, for a total eclipse there is to wait until August 2, 2027: an eclipse visible as a total south of Lampedusa, in the sea but in Italian territory, but which in any case will have a very wide coverage also for the rest of the Peninsula.
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