Traditional Culture Encyclopedia - Weather forecast - The composition of lunar eclipse is 600~800 words

The composition of lunar eclipse is 600~800 words

Today, I got up early, with binoculars, sunglasses and a camera.

Maybe you have to ask: where are you taking so many things? Hee hee, sell it first.

Today seems different from usual. A gentle breeze is refreshing. My father and I went to Duyao River in Hexi, chose a place, took out our binoculars and put on sunglasses. Hehe, you should have guessed this time, right? Yes! I am watching the total solar eclipse. Do you know what a total solar eclipse is? Ok, I'd better start talking!

Solar eclipse, also called solar eclipse, is an astronomical phenomenon, which only happens when the moon moves between the sun and the earth. At this time, for some parts of the earth, the moon is in front of the earth, so some or all of the light from the sun is blocked, so it seems that some or all of the sun has disappeared. Eclipses only occur at the new moon, when the moon and the sun are in harmony. Solar eclipse is a very rare phenomenon. Among the four kinds of solar eclipses, total solar eclipse is rare, because people in this area can observe the solar eclipse only when the umbra of the moon is projected on the earth's surface. Total solar eclipse is a magnificent natural landscape, so it often attracts many tourists to watch it overseas. For example, the total solar eclipse in Europe in 1999 attracted many tourists, and some travel agencies also launched itineraries specially designed for these tourists. In ancient times, human beings lacked astronomical knowledge, and thought that the solar eclipse was caused by dogs eating the sky, or symbolized the arrival of disaster and held a ceremony during the solar eclipse. But in modern society, the significance of solar eclipse has been gradually abandoned by people. The seasons of solar and lunar eclipses. The eclipse must happen in the new moon, which is the first day of the lunar calendar. At this time, the moon is located between the earth and the sun, but because the orbit of the sun (ecliptic) and the orbit of the moon (ecliptic) form an angle of 5.9, there is not always an eclipse, but when the eclipse occurs, the sun and the moon must be near the "yellow-white intersection" (rising intersection or falling intersection). The occurrence of the solar eclipse must be that the new moon and the full moon appear in a certain boundary where the yellow and white intersect, and this boundary is called "food limit". The calculation shows that for the solar eclipse, if the new moon is within about 18 degrees near the intersection of the ecliptic and the ecliptic, the solar eclipse may occur; If the new moon is within about 16 degrees near the intersection of the ecliptic and the white road, there must be a solar eclipse. For an eclipse, if the full moon is within 12 degrees near the intersection of the ecliptic and the ecliptic, an eclipse may occur; If the full moon is within about 10 degrees near the intersection of the ecliptic and the ecliptic, there must be an eclipse. Because there are two intersections between the ecliptic and the ecliptic, and the distance between the two intersections is 180 degrees, there may be two eclipses a year, both of which are called "food seasons" and are separated by half a year. The sun moves eastward about 1 degree on the ecliptic every day. Because the eclipse limit is about 18 degrees, it takes about 36 days for the sun to travel from 18 degrees west of the intersection of the ecliptic and the ecliptic to 18 degrees east of the intersection of the ecliptic, which means that each eclipse season is 36 days. For an eclipse, its food limit is about 12 degrees, so the monthly food season is only 24 days. The total solar eclipse occurs because the sun is close to the intersection of the lunar orbit and the earth orbit, and the moon is at the nearest point to this point. An annular eclipse occurs because the sun is close to the intersection of the moon's orbit and the earth's orbit, and the moon is farthest from this point.

All right, that's it. Let's continue to talk about how I view the total solar eclipse!

When my father and I were ready, we began to observe, for a minute, two minutes ... I was a little fidgety. Father saw it and said, "Look, the sun is missing a piece!" " "I quickly looked up, oh my god! Really, the original round sun has lost a small piece. If I watch it any longer, it will be bad. The sun was obscured by dark clouds. I waited patiently. I can't wait any longer My father and I can't seem to wait any longer ... so, my father and I went home like lightning. When I got home, I was bored. I turned on the computer, played for a while, and went to the toilet. Damn it! ! ! I let out a cry as high as 12 decibel. What happened? The original blue sky became dark and people were shrouded in darkness. I groped for the light and ran to the balcony. There was no sun in the sky. It can be said that the world has been splashed with a bottle of ink. Gradually, the sky turned white, and the sun gradually smiled, so the total solar eclipse ended!