What are three kinds of eclipses and what are two kinds of eclipses?

Solar eclipse is a special astronomical phenomenon, which we can see with the naked eye. There are three kinds of eclipses and two kinds of eclipses, so do you know what they are? Then let's reveal the constellation knowledge for you!

What are three kinds of eclipses? What are the total solar eclipse, partial solar eclipse and annular solar eclipse?

After the total lunar eclipse, a total lunar eclipse began: the moon just touched the penumbra, and then it was invisible to the naked eye. The process of formal eclipse is divided into five stages: first loss, eating, eating, giving birth to light, and last contact. 1. The penumbral eclipse begins: The moon has just touched the penumbral region, and at this time, the brightness of the lunar surface drops slightly, but it is difficult for the naked eye to detect. 2. Initial loss: It marks the beginning of the eclipse. The moon slowly entered the shadow of the earth from the eastern edge, and the umbra of the moon and the earth was circumscribed for the first time. 3. Eclipse: The moon enters the umbra of the earth and is inscribed with the umbra for the first time. The moon has just entered the umbra of the earth. 4. What to eat: The moment when the center of the full moon is closest to the center of the Earth's umbra. At this time, the surface of the moon before and after is copper or dark red. The red light deflects the most, and the shadow closest to the earth is reflected on the moon; In addition, due to the different contents and positions of dust and clouds in the atmosphere, the degree of light deflection will be different, so the moon will appear dark red, copper or orange during the total lunar eclipse. Similarly, due to the refraction of the atmosphere, the sunrise and sunset are not white, but orange or red according to the height because of the different degrees of atmospheric refraction. 5. Photo genesis: The moon moves in the Earth's umbra and cuts into the Earth's umbra for the second time. When the total lunar eclipse phase is over, the eastern edge of the moon is inscribed with the eastern edge of the Earth's umbra. 6. Last contact: The moon gradually leaves the Earth's umbra and is tangent to the Earth's umbra for the second time. The western edge of the moon is tangent to the eastern edge of the umbra of the earth, and the whole eclipse process ends at this time. The degree of eclipse is called "eclipse", which is equal to the ratio of the farthest distance from the edge of the moon to the umbra of the earth when the eclipse reaches the meridian of the moon. 7. Penumbral eclipse: The moon leaves the penumbra, and the whole eclipse process officially ends. There is no light eclipse in the partial lunar eclipse, and the eclipse only indicates the closest moment to the earth's shadow. The degree of solar eclipse is expressed by food score. An eclipse is equal to the ratio of the apparent diameter of the moon entering the umbra during the eclipse to the apparent diameter of the moon. When the eclipse happens to be the same as the moon and umbra, the eclipse is equal to 1. When the moon goes deeper into the umbra, the eclipse is represented by a number greater than 1. Total lunar eclipse is greater than or equal to 1. Partial eclipse is less than 1. The ratio of the diameter of the eclipse entering the penumbra to the apparent diameter of the moon. When the monthly eclipse is greater than 0.7, it can be detected by naked eyes.

When a total solar eclipse occurs, it can be divided into five kinds of solar eclipse phenomena according to the positional relationship between the round surface of the moon and the round surface of the sun: 1 Initial deficit. The moon moves faster than the apparent speed of the sun. The moon caught up with the sun during the eclipse. When the eastern edge of the moon just "touches" the western edge of the sun, it is called the first loss, which is the first "circumscribed" and the beginning of the solar eclipse. 2. Eat and drink. About 1 hour after the initial loss, the moment when the eastern edge of the moon and the eastern edge of the sun "cut in" is called a lunar eclipse, which is the beginning of a total solar eclipse. For a total solar eclipse, the moon covers the whole sun, while for an annular eclipse, the sun begins to form a ring. During the eclipse, the positional relationship between the shadow of the moon and the circular surface of the sun first appeared, which also refers to the moment when this positional relationship appeared. Eating occurs after the initial loss. From the initial loss, the moon continued to move eastward, the part of the sun's circular surface covered by the moon gradually increased, and the intensity and heat of sunlight decreased obviously. When the eastern edge of the moon's surface is inscribed with the eastern edge of the sun's surface, it is called an eclipse. The sky is opposite to the east-west direction of the map. 3. Eat a lot. When the sun is eaten the deepest, the center of the moon moves to the nearest distance from the center of the sun; During the partial eclipse, when the sun is covered by the moon the most, the positional relationship between them; During total solar eclipse and annular solar eclipse, when the sun is completely covered by the moon and the distance between the two centers is the shortest, the positional relationship between them. It also refers to the moment when the above positional relationship occurs.

4. Produce light. The moment when the western edge of the moon and the western edge of the sun "cut in" is called the birth of light, which is the end of the total solar eclipse; It usually takes only two or three minutes from food to light, and the longest is no more than seven and a half minutes. For an eclipse, after a severe eclipse, the appearance of the moon continues to move eastward relative to the surface of the sun. 5. Last contact. About an hour after birth, the "contact" between the western edge of the moon and the eastern edge of the sun is called the last contact. From then on, the moon and the sun were completely "separated" and the eclipse ended. Total solar eclipse and annular solar eclipse have the above five processes, while partial solar eclipse has only three processes: initial loss, heavy food and last contact, without food and light. Another explanation: the positional relationship between the shadow of the moon and the circular surface of the sun during the eclipse also refers to the moment when this positional relationship occurs. The last contact was the end of the eclipse.