What does it mean that the dog eats the moon?

Eclipses can be divided into three types: partial eclipse, total eclipse and penumbral eclipse. When only a part of the moon enters the umbra of the earth, there will be a partial lunar eclipse. When a partial eclipse occurs, the moon will be half white and half copper. The partial eclipse of the moon can be divided into three stages-initial loss, heavy eclipse and last contact.

Extended data:

On March 4, 2007 (the fifteenth day of the first month), "Tengu eats the moon" was staged. According to the Shanghai Observatory of the Chinese Academy of Sciences, although Shanghai can't see the whole process of the "partial eclipse of the moon", from 5: 29 am on March 4 (the fifteenth day of the first month), the naked eye can enjoy the interesting footage of the "Tiangou" devouring the moon.

Total lunar eclipse is a strange astronomical phenomenon in which the earth moves between the sun and the moon and the shadow of the earth covers the moon. On March 4, 2007, it started at about 5: 30 in the morning and went through the process of "initial loss", "heavy food" and the last contact, and ended at 9: 00 in the morning. The total lunar eclipse will last 1 hour 14 minutes.

"Shanghai can't see the total lunar eclipse, only the partial lunar eclipse for about half an hour." Astronomical experts say that Shanghai residents can only see the shadow of the moon entering the earth at 5: 29, and then the shadow gradually expands. From about 5: 50, there is basically no observation effect.

"This partial solar eclipse caught up with the Lantern Festival, which is a complete coincidence." Experts said that this kind of celestial phenomenon may appear every month, with an average of two or three times a year in the world, but for astronomy lovers, this opportunity is also worth cherishing.

References:

Baidu encyclopedia-partial eclipse of the moon