Total Lunar Eclipse to be visible from North America.

A total eclipse of the Sun will be visible from parts of Mexico and the United States on Monday 8 April 2024, with a partial eclipse visible from the rest of North America, except Alaska, as well as all of Central America, the Caribbean, Greenland, Iceland, Ireland, Scotland, the Galapagos, and Hawai'i. The event will occur between 3.43 pm and 8.52 am GMT, although local start and end times will vary within this window.

The Moon's shadow projected onto the Earth as the eclipse proceeds. The hemisphere of the Earth facing the Sun is shown. Contours show where various fractions of the Sun's disk is covered. In-The-Sky.

Eclipses are a product of the way the Earth, Moon and Sun move about one-another. The Moon orbits the Earth every 28 days, while the Earth orbits the Sun every 365 days, and because the two Sun and Moon appear roughly the same size when seen from Earth, it is quite possible for the Moon to block out the light of the Sun. At first sight this would seem likely to happen every month at the New Moon, when the Moon is on the same side of the Earth as the Sun, and therefore invisible (the Moon produced no light of its own, when we see the Moon, we are seeing reflected sunlight, but this can only happen when we can see parts of the Moon illuminated by the Sun).

The relative positions of the Sun, Moon and Earth during a Solar eclipse. Starry Night.

However, the Moon does not orbit in quite the same plane as the Earth orbits the Sun, so the Eclipses only occur when the two orbital planes cross one-another; this typically happens two or three times a year, and always at the New Moon. During Total Eclipses the Moon entirely blocks the light of the Sun, however most Eclipses are Partial, the Moon only partially blocks the light of the Sun.

How the differing inclinations of the Earth and Moon's orbits prevent us having an eclipse every 28 days. Starry Skies.

Although the light of the Sun is reduced during an Eclipse, it is still extremely dangerous to look directly at the Sun, and viewing eclipses should not be undertaken without appropriate equipment.

The narrow path of totality—where the Moon covers the Sun completely, causing a total eclipse—runs through Mexico (from Sinaloa to Coahuila), the USA (from Texas to Maine), and Canada (from Ontario to Newfoundland). A partial eclipse will be visible across nearly all of North America, and a sliver of western Europe. Time and Date.

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