China News Service, Guangzhou, November 4th (Guo Jun and Li Jianji) According to the Guangzhou Wuyang Planetarium on the 4th, there will be a rare total lunar eclipse (red moon) celestial phenomenon on November 8 this year.
If the weather is clear, it can be observed in most parts of China, and the observation conditions in the eastern regions are better than those in the western regions.
Around 19:00 on the same day, it is best to watch the red moon.
According to reports, the earliest moonrise city in China that day was Fuyuan City, Heilongjiang Province.
On November 8, the moonrise time in Fuyuan is 15:24, and the local public is expected to be the first to watch the full moon.
A total lunar eclipse can be divided into 7 phases.
For the total lunar eclipse on November 8, the penumbral eclipse begins at 16:01 (the moon begins to touch the penumbra of the earth); the first loss is at 17:09 (the moon just touches the umbra of the earth); the eclipse is at 18:16 (the moon It happens to all enter the umbra of the earth); the eclipse is at 18:59 (the center of the moon is the closest to the center of the earth's shadow), the maximum eclipse is 1.364; the light is at 19:42 (the moment when the moon emerges from the earth's umbra); complex circle It is 20:49 (the moon just completely leaves the earth's umbra); the final penumbral eclipse is 21:58 (the moon just completely leaves the earth's penumbra).
The entire lunar eclipse lasts up to 1 hour and 26 minutes (from eclipse to light).
Total lunar eclipse (data map) Photo by Li Jianji
Experts explain that a lunar eclipse is possible when the sun, earth and moon are aligned in an approximately straight line (moon sighting).
But because the moon's orbit around the earth (white track) and the sun's apparent track (ecliptic) are not on the same plane, there is an included angle of 5 degrees and 9 minutes.
Therefore, in most cases, the full moon passes over or under the shadow of the Earth, so there is no lunar eclipse.
A total lunar eclipse occurs only when the sun, earth and moon are in a true straight line.
Since the moon orbits the earth from west to east, the eastern edge of the moon is the first to enter the earth's shadow.
And because sunlight has seven colors of "red, orange, yellow, green, blue, blue and purple", the first three are "warm colors", red light has the longest wavelength, can penetrate the thick atmosphere, and can be refracted and scattered into the space of the earth's umbra. .
So, even when the moon enters the Earth's umbra, the public can still witness the moon's "bronze color," which is what people call a "red moon."
On November 8, the moon will rise at 17:39 in Guangzhou, and the moon will rise from the horizon slightly north of the east.
At 17:45, the sun sets in the west.
A total lunar eclipse can be seen in China, the last time it happened on July 28, 2018, and the next one will be on September 8, 2025.
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