An eclipse occurs when the earth, moon and sun are perfectly aligned. The moon passes right in front of the solar disk, obscuring it, and the eclipse on April 8 will be total over a strip of land up to 200 km wide. Night falls first in northern Mexico, around 8:15 pm Italian time. Totality will then move northeastward, first crossing Texas and then several U.S. states to parts of southeastern Canada. A partial eclipse will instead be visible over a vast area, which includes almost all of North and Central America, Iceland and parts of the European countries bordering the Atlantic Ocean. Italy is too far east to be included in the area affected by the phenomenon.
The duration of an eclipse is not always the same. It mainly depends on the distance at which the moon is located. In this case, the eclipse will be very long. In many areas, the totality phase will last more than four minutes. In Torreon, Mexico, it will reach 4:28 minutes.
The total solar eclipse will be visible in major cities such as San Antonio, Dallas, Indianapolis, Cleveland, Buffalo and Montreal. Famous locations such as Niagara Falls will also be affected. As a result, a large influx of tourists is expected. Most hotels have been without rooms for months, rental cars are unavailable and thousands of themed events and shows are planned. The local administration is on alert to manage the huge influx of people, with all the problems that may arise, from traffic to security.
If for tourists April 8th is an opportunity to admire the spectacle of nature, for some scientists it is an opportunity to conduct research. In fact, the light emitted by the sun during the total solar eclipse will allow observations that would not normally be possible. For example, INAF has sent teams of researchers to North America for a variety of tasks ranging from studying the outer solar atmosphere to searching for asteroids between Mercury and its star.
During the period of totality, a comet could also appear in the sky: this comet, called Comet 12P/Ponsbrook, is particularly bright and is currently very close to the Sun. It is currently hidden from sunlight, but could show itself during the total eclipse , giving life to a truly unique show.
The Earth and Moon especially favor a 100 km area in southwest Texas in their continuous dance around the Sun. There, the total eclipse on April 8 will be the second major eclipse in as many months; on October 14, 2023, the same area was in the path of an annular solar eclipse. This is a very unusual combination, at least in such a short distance.
On the other hand, a total solar eclipse will again be visible in the United States, as will happen in Alaska in 2033.
