What astronomical phenomenon is the red moon?

It is an astronomical phenomenon that the moon is red during the total lunar eclipse. When the moon is near the horizon, that is, when it has just risen and set. At this time, the atmosphere near the horizon has a strong refraction effect on moonlight, which is reflected sunlight. This refraction is most obvious for red light with the longest wavelength, so it appears red. The sun just rising and setting is also red, and the reason is the same.

Blood Moon

The blood moon, also known as the "red moon", usually occurs at the extreme of the total lunar eclipse. On May 26th this year, a "super blood moon" appeared, which can also be directly called "blood moon". This time, the super bloody moon appeared as a rare astronomical phenomenon-the super bloody total lunar eclipse. There is a group of "super moon+red moon+total lunar eclipse", and before this super blood moon appeared, we also saw many situations, that is, the natural disasters on the earth are a bit "wonderful".

In fact, there is no need to "deliberately connect" the super blood moon with the earthquake. Earthquakes are normal geological activities and have nothing to do with them. On a global scale, earthquakes of different sizes occur almost every day, most of which are caused by plate movement, and a few may be related to human activities, so they are basically normal natural disasters, in which the intensity of earthquake activity caused by plate movement is the strongest, while the earthquakes of -6.4 and -7.4 in Yunnan and Qinghai are caused by plate movement, and experts in China have also analyzed plate movement. It may be that the large plate is caused by the obvious increase of Indian plate activity.

The process of lunar eclipse

The process of an eclipse can be divided into five stages: first loss, eating, eating, giving birth to light and last contact.

First loss: The moon has just touched the umbra of the earth, marking the beginning of the eclipse.

Eclipse: The western edge of the moon is inscribed with the western edge of the Earth's umbra, and the moon just enters the Earth's umbra.

Eclipse: The center of the moon is closest to the center of the Earth's umbra.

Luminescence: the eastern edge of the moon is inscribed with the eastern edge of the umbra of the earth, and the total solar eclipse phase ends at this time.

Final contact: the western edge of the moon is tangent to the eastern edge of the umbra of the earth. At this time, the whole eclipse was over.

The degree of eclipse is called "eclipse", which is equal to the ratio of the farthest distance from the edge of the moon wheel to the umbra of the earth and the meridian of the moon when the eclipse is serious.

Observation of total lunar eclipse

The moon can be observed directly with the naked eye, and the following two total lunar eclipses can be observed without any special equipment.

1, record the whole process of total lunar eclipse.

Prepare some observation paper before observation, draw a big circle on the paper, and mark 0 to 360 counterclockwise on the circle. The position of 0 indicates the true north pole of the moon. During the total solar eclipse, draw a sketch of the eclipse every 4 minutes. From this, we can get a group of eclipse pictures of the whole process of total lunar eclipse.

2. Observe the brightness and color of the moon.

During the eclipse, the brightness and color of the lunar surface can be divided into the following five levels: level 0, which is very dim and almost invisible; 1, slightly bright, black and yellow, the details are difficult to distinguish; Grade 2, slightly bright, dark red or brown, with some dark spots in the middle and quite bright outside; Level 3, brick red, you can see the details of the moon, but it is very vague; Level 4, copper red, very bright, very bright outside, slightly blue, you can see big details. When observing the total lunar eclipse, it is necessary to judge the brightness and color scale of the lunar surface and record it. It also depends on the weather at that time.