When does the lunar eclipse usually occur?

Eclipses generally occur on the first day of the lunar calendar and around the fifteenth day of the lunar calendar. A solar eclipse, also known as an eclipse, is when the moon moves between the sun and the earth. If the three are in a straight line, the moon will block the light from the sun to the earth, and the shadow behind the moon will just fall on the earth. At this time, the solar eclipse happened.

In folklore, this phenomenon is called Tiangou Food Day. Eclipses only occur at the new moon, when the moon and the sun are in harmony. Eclipses are divided into partial solar eclipse, total solar eclipse, annular solar eclipse and total solar eclipse.

When observing the solar eclipse, you can't look directly at the sun, otherwise it will cause temporary blindness and even permanent blindness in severe cases. There were two eclipses in the sky on 20 16. These two eclipses are the total solar eclipse on March 9 and the annular solar eclipse on September 1 day.

Under the sunlight, the moon and the earth are dragging shadows away from the sun. The moon swept across the ground and produced an eclipse. The solar eclipse must happen on the first day of the lunar calendar. The moon entered the shadow of the earth, causing an eclipse.