What are the characteristics of a lunar eclipse, and there are several types of lunar eclipses

Lunar eclipse. The principle of the eclipse and the eclipse.

Similar. In the lunar calendar of the month.

Ten. V, XVI, the Moon.

Runs 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, resulting in a total lunar eclipse.

Astronomical experts say that the process of a lunar eclipse can go through three and a half hours, mainly including five periods: the first loss, the eclipse, the eclipse, the light and the round. In the case of a total lunar eclipse, a reddish moon appears in a dark sky at the moment of the eclipse, which is spectacular.

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

Lunar eclipses occur in "Wang", but not every "Wang" has a lunar eclipse, which is the same as not every "New Year" solar eclipse.

The phenomenon when the Moon enters the Earth's shadow and the Moon surface darkens is called a lunar eclipse. The earth has a shadow in the direction of the sun on its back, called the earth shadow. The earth shadow is divided into two parts: umbra and penumbra. The umbra does not receive direct light from the sun, and the penumbra receives some of the light from the sun.

It has the following characteristics:

1. On the fifteenth and sixteenth of the lunar month, the moon runs in the opposite direction to the sun, if the center of the earth and the moon is 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, it will produce a partial lunar eclipse, and when the moon enters the penumbra of the earth, it is a penumbral eclipse, but because the brightness is weakened very little, it is not easy to detect, so it is called a lunar eclipse, and there are only two kinds of lunar eclipses and partial lunar eclipses.

2. Lunar eclipses occur in the future, but not every time there is a lunar eclipse, under normal circumstances, the moon rarely passes through or partially passes through the earth's umbra, so lunar eclipses rarely occur.

3. Lunar eclipses can only occur when they are in sight, but because the orbits of the Earth and the Moon are not in the same plane, and there is an angle of 5 degrees and 9 minutes, a lunar eclipse can only occur when the Moon orbits near the intersection of the two orbital planes.

There are three types of lunar eclipses. There are three types of lunar eclipses: partial lunar eclipses, total lunar eclipses and penumbral lunar eclipses.

A partial lunar eclipse occurs when the Moon enters only part of the Earth's umbra; And the diameter of the Earth's umbra is still twice that of the Moon.

Therefore, when the center of the Earth and the Moon is approximately in the same straight line, the Moon will completely enter the Earth's umbra, resulting in a total lunar eclipse.

And if the Moon is always partially obscured by the Earth's umbra, that is, only part of the Earth's umbra, a partial lunar eclipse occurs. There will be no annular lunar eclipse on the Moon.

Because the volume of the Moon is smaller than that of the Earth, there is no such phenomenon as an annular eclipse of the Moon. Lunar eclipses generally occur twice a year, with a maximum of 3 occurrences and sometimes none at all. Because in general, the Moon either passes above or departs below, rarely passing through or partially passing through the Earth's umbra, so there is generally no lunar eclipse.

1. Lunar eclipse, also known as lunar eclipse, is an astronomical phenomenon in which when the moon moves into the shadow of the earth (the shadow is divided into two parts, umbra and penumbra), the part that can be illuminated by the sun's rays can not be illuminated by direct sunlight, making it impossible for observers located on the earth to see the ordinary moon phase.

2. When a lunar eclipse occurs, the sun, the earth, and the moon happen to be or almost in the same straight line, so the lunar eclipse must occur on the night of the full moon (lunar calendar.

Ten. Five, ten.

6. or 17), as the Shuo Wen says, "the solar eclipse is the new year, and the lunar eclipse is the hope." The Earth's shadow is located in the Earth's orbital plane (ecliptic plane), which does not coincide with the lunar orbital plane (white plane), and the intersection angle of the yellow and white planes is about 5 degrees. During most Full Moons, the Moon is not in the ecliptic plane, but is either north or south, not in the Earth's shadow, so not every Full Moon eclipse occurs. Lunar eclipses occur at least twice a year around the world.

3. There are three types of lunar eclipses:

1) Total Lunar Eclipse: When the entire Moon enters the Earth's umbra. The most recent total lunar eclipse occurred on May 26, 2021.

2) Partial lunar eclipse: When the Moon only partially enters the Earth's umbra, a partial lunar eclipse occurs before and after it. The most recent partial lunar eclipse occurred on July 16, 2019.

3) Penumbral lunar eclipse: At this time, the moon only skimms the penumbra of the earth, causing the luminosity of the lunar surface to weaken slightly, so it is less noticeable to burn the mill. The most recent penumbral lunar eclipse occurred on June 5, 2020.