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The longest partial lunar eclipse of this century will occur on Friday morning

The longest partial lunar eclipse of the century will occur on Friday morning, causing the moon to appear red for up to 3.5 hours.

The moon will darken for most of the planet on November 19, with up to 97% of the moon slipping into the Earth’s shadow.

The best place to view the eclipse will be North America, where nearly all 3.5 hours will be visible, as night falls when the eclipse begins.

“This is an exceptionally deep partial eclipse,” EarthSky explained, leaving only a thin sliver of the moon exposed to direct sunlight at the point of the maximum eclipse.

The rest of the moon will acquire a reddish rust color, which is typical of a total lunar eclipse and is caused by light waves from the sun that are filtered by Earth’s atmosphere.

According to the Royal Observatory, Greenwich, the partial eclipse will be “barely visible in the UK” because it occurs when the moon is near or below the horizon.

People in North America will see the full partial eclipse, while those in Western Asia, Australia and New Zealand will miss the early stages.

Sunset occurs in South America and Western Europe before the eclipse ends, so it will miss the later stages, and will not be visible at all in Africa or the Middle East.

And it will be at the point of the biggest eclipse, with 97% of the moon covered in the Earth’s shadow, at 09:02 GMT when the moon is best seen from Hawaii.

The first stages of the eclipse will begin at 06:02 GMT on November 19, with the moon gradually increasing from 07:18 GMT, and end at 10:47 GMT.

A lunar eclipse occurs when the Earth lies between the Moon and the Sun, causing the Earth’s shadow to eclipse the Moon.

When the eclipse is partial, most of the sunlight is covered by the Earth, causing the moon to appear red.

Although sunlight is blocked by the Earth’s shadow, it bends around the Earth and travels through our atmosphere, filtering out the bluer wavelengths of light.

When this starlight reaches the moon, it comes in red and orange, making the moon appear redder than usual during an eclipse.

The duration of the eclipse depends on a number of factors, including where the moon is in its elliptical orbit of the earth and the earth in its elliptical orbit of the sun.

The entire eclipse, from the first moment the Earth’s shadow begins to cover the moon, will be six hours and two minutes, the longest since February 18, 1440.

The duration depends on three things – how far the moon is from the earth, how far the earth is from the sun, and how closely the sun, earth and moon are connected at that point.

The parachute eclipse, the part covered in the full Earth’s shadow, will last 3 hours and 28 minutes – the longest in the century.

The partial lunar eclipse of July 2019 lasted less than three hours, and the partial lunar eclipse of June 2010 lasted for two hours and 43 minutes.

In November 1974 there was a partial lunar eclipse that lasted three hours and 14 minutes, and one in May 1979 that lasted three hours and 18 minutes.

In May 1956, the partial eclipse lasted for three hours and 24 minutes, just four minutes shorter than the eclipse scheduled for Friday, according to NASA.

NASA figures revealed that a partial lunar eclipse in 1892 lasted three hours and 26 minutes, and in 1511 an eclipse lasted for three hours and 27 minutes, but you have to go back to the year 1440 to get an eclipse that lasted more than three hours and 28 minutes.

The Earth will not see another period of this period until February 8, 2669, but there is a total lunar eclipse in May 2022.