When does a lunar eclipse start and when does a lunar eclipse occur?

Penumbral lunar eclipse on August 6.

Fifteen days after the total solar eclipse, a penumbral lunar eclipse with a smaller eclipse will occur. Since the food is only eaten, it will not be perceptible to the naked eye. Figure 7 shows the details of the lunar eclipse.

A partial lunar eclipse occurs on December 31.

The last lunar eclipse in 2009 occurred the day before the New Year. This partial lunar eclipse occurred in the constellation Gemini, where the eclipse was small and visible from most of the Northern Hemisphere (Figure 8). The eclipse takes place at 19:23 UTC, and the eclipse is about to arrive.

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A total lunar eclipse has several important time points, such as the initial loss, the eclipse, the light, and the round. The first loss of this total lunar eclipse is at 20:45 Beijing time on December 10, the eclipse is at 22:06 on the 10th, the light is at 22:57 on the 10th, and the reunion occurs at 0:17 on the 11th. Among them, the eclipse is the total eclipse phase, which means that the most exciting total eclipse time for the observer is 51 minutes.

The total lunar eclipse begins at 19:33 Beijing time, the first loss is at 20:45, the eclipse is at 22:06, the light is at 22:57, and the circle is at 0:17 the next day. One of the more exciting parts will start at 20:45. And the "Red Moon", which was completely "eaten", was only about 51 minutes.

The solar eclipse must occur in Shuo (the first day of the lunar calendar), and the lunar eclipse must occur in Wang (the fifteenth or sixteenth lunar month). In the event of a solar and lunar eclipse, the sun, the earth, and the moon are exactly in the same straight line, and the sun and moon have the greatest gravitational force on the earth. Since the plane of the Moon's orbit around the Earth (the white plane) and the Earth's orbital plane around the Sun (the ecliptic plane) do not coincide, but have an angle of about 5°9, no solar or lunar eclipses occur every month.

A solar or lunar eclipse occurs only when the New Moon (New Moon) or Wangwang (Full Moon) occurs near the intersection of the ecliptic and white paths. Through long-term observation of solar or lunar eclipses, people have found that there is a pattern in the occurrence of solar or lunar eclipses, which reappear according to the cycle of 6585 and 1 3 (or about 11 days of 18 years). This cycle is called the Sharo Cycle and was discovered by the ancient Babylonians.

Lunar eclipses occur in the hope (full moon), but not every lunar eclipse occurs, which is the same as not every solar eclipse. In general, the Moon either passes above or below the Earth's umbra, rarely passing through or partially passing through the Earth's umbra, so a lunar eclipse generally does not occur. Lunar eclipses occur up to 3 times a year, and sometimes none at all.

Lunar eclipseGenerally in the lunar calendar.

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in the lunar calendar. Ten.

On the fifth and sixteenth, the moon travels in the opposite direction to the sun. At this time, if the center of the Earth and the Moon are roughly in the same straight line, the Moon will enter the Earth's umbra and produce a total lunar eclipse.

If only part of the Moon enters the Earth's umbra, a partial lunar eclipse occurs. When the moon.

When entering the penumbra of the earth, it should be a penumbral eclipse, but because its brightness is weakened very little and it is not easy to detect, it is not called a lunar eclipse, so there are only two kinds of lunar eclipses: total lunar eclipses and partial lunar eclipses.

The process of a lunar eclipse.

The process of the official lunar eclipse is divided into five stages: the first loss, the eclipse, the eclipse, the rebirth, and the recuperation.

1. Initial loss (partial lunar eclipse and total lunar eclipse only): marks the beginning of a lunar eclipse. The Moon slowly enters the Earth's shadow from the eastern edge, and the Moon and the Earth's umbra are incised for the first time.

2. Eclipse (total lunar eclipse only): The Moon enters the Earth's umbra and is inscribed with the umbra for the first time. The Moon just went all the way into the Earth's umbra.

3. Eclipse: The moment when the center of the full moon is closest to the center of the earth's umbra, when the surface of the moon before and after is reddish copper or dark red.

4. Light (total lunar eclipse only): The moon moves in the shadow of the earth's original attack and insects the earth's umbra for the second time. The eastern edge of the Moon is intangent to the eastern edge of the Earth's umbra, at which point the total eclipse phase ends.

5. Rounding (partial lunar eclipse and total lunar eclipse only): The moon gradually leaves the earth's umbra and is intangent to the earth's umbra for the second time.

As of July 1, 2020, there is no lunar eclipse today. The time of the next lunar eclipse is May 26, 2021. The moon that humans see does not shine, but what we see is that the sun shines on the moon and diffusely reflects into my eyes.

A lunar eclipse occurs when the Earth blocks the sun's rays from shining on the moon.

In ancient China, because people did not understand the cause of the formation of the lunar eclipse, they superstitiously believed that the occurrence of the lunar eclipse was a great disaster, so in ancient times people called the lunar eclipse "Tengu eating the moon". A lunar eclipse is a natural phenomenon of the linear propagation of light.

This total lunar eclipse is the longest lunar eclipse of the 21st century, with an eclipse of 3:30 and a light of 5:14, and a total eclipse that lasts for 1 hour and 44 minutes.

It should be the second half of the night, and the cloudy sky is out of sight.

It's about two o'clock.

Today's lunar eclipse starts at night, is the time different across the country, you go out at night to have a look.

It started at 2:24 a.m. and resumed at 6:19 a.m.