Sometimes a rare sight appears in the sky, such as a red moon. Why does a red moon appear in the sky?
Why does the red moon appear in the sky?
When a total lunar eclipse occurs, a red moon usually appears. Purple, blue, green and yellow light has shorter wavelengths and is absorbed by the thick atmosphere, leaving only longer wavelength red light that can penetrate and refract to the moon's surface behind the Earth's shadow, so we can still see the Red Moon Shadows hanging in the sky and on the earth. The Red Moon is also known as the Blood Moon. In layman's terms, it is a red moon in the sky. The blood moon is a spectacle. Ancient Chinese legend: The red moon is the coldest phase, indicating weakness, evil, resentment, and violence in the world; Europeans believe that the blood moon will awaken dark magic! Indians believe that the blood moon heralds disaster. But in fact, since the moon has no atmosphere, the corona can be observed during a total solar eclipse on the earth; on the contrary, because the earth has an atmosphere, the earth's atmosphere can be observed during a total solar eclipse on the moon, and this atmosphere happens to be red (This is similar to the sunrise or sunset we observe on Earth). In other words, when a total solar eclipse occurs on the moon (which is exactly what a total lunar eclipse looks like on Earth), the half of the moon facing the Earth is not completely dark, but appears red like a morning/evening on Earth - i.e., of course, from Earth Look, the moon is red during a total lunar eclipse. I think it must be spectacular to see the Earth from the moon at this time. It should be a black disk with a large red halo around it. Lunar and solar eclipses have been taboo in Feng Shui since ancient times and are regarded as bad omens. In the East, because the sun symbolizes grace and the moon symbolizes punishment, a solar eclipse means that the country will be lightly killed and the people will be relieved. In other words, techniques to pray can be avoided. The solar eclipse starts from the upper half of the moon, which is the debauchery of the king; from the middle, it is the failure of the prime minister; fundamentally speaking, it is the universal failure. If the moon is eaten raw on the third day, the whole country will mourn; if it is eaten from ten to fourteen o'clock, the army will rise; if it is eaten on the fifteenth day, the world will perish. Spring food, the harvest is poor, and the general dies; summer food, severe drought; autumn food, soldiers rise; winter food, soldiers mourn. In fact, a "red moon" can appear at any time. When the moon is usually low and close to the horizon, the sunlight it reflects will be affected by the earth's atmosphere, so there is a certain chance of a "red moon" appearing, but the moon at this time is not necessarily "round", or people may not pay attention to it. It will happen then. As for the "red moon" produced during a total lunar eclipse, the main reason is that the earth blocks sunlight during a total lunar eclipse, and only part of the sunlight is refracted by the earth's atmosphere and hits the moon, thus presenting a "red moon" situation.