According to data provided to Lusa by Rui Agostinho, astronomer and retired professor at the Faculty of Sciences of the University of Lisbon, there will be a second total eclipse of the Moon this year on 7 September, but it will only be visible in its entirety in the Algarve, and partially in the regions of Madeira, Lisbon and Porto.

The month of March will once again have an eclipse, but this time a partial eclipse of the Sun, on the 29th, which will be visible in Portugal.

In September, on the 21st, there will be a new partial eclipse of the Sun, but it will not be visible in Portugal.

By definition, a total lunar eclipse occurs when the Moon, in its full phase, is completely hidden by the Earth's shadow.

The phenomenon will be visible on Friday in the Pacific, Americas, western Europe and western Africa regions and on September 7 in Europe, Africa, Asia and Australia.

A partial solar eclipse occurs when the Moon comes between the Earth and the Sun, partially blocking the star's light.

This phenomenon will be visible on March 29 in Europe, northwest Africa and northern Russia and on September 21 in the South Pacific, New Zealand and Antarctica.

Eclipses are visible to the naked eye or with observation equipment as long as sky conditions allow.