Which of the following traditional festivals in China is likely to occur during the "Tengu Eclipse" (lunar eclipse) phenomenon? ( ) A. Spring Festival B. Dragon Boat Festival C. Chung Yeung Festival D

Which of the following traditional festivals in China is likely to occur during the "Tengu Eclipse" (lunar eclipse) phenomenon? ( ) A. Spring Festival B. Dragon Boat Festival C. Chung Yeung Festival D. Mid-Autumn Festival

Which of the following traditional festivals in China is the "Tengu Eclipse" (Moon Eclipse) phenomenon likely to occur?D. Mid-Autumn Festival.

Lunar eclipses can be categorized as partial lunar eclipses, total lunar eclipses and penumbral lunar eclipses. A partial lunar eclipse occurs when the Moon is only partially in the Earth's umbra; and when the diameter of the Earth's umbra is still equal to 2.5 times that of the Moon. So when the centers of the Earth and the Moon are roughly in the same straight line, the Moon will completely enter the Earth's umbra and a total lunar eclipse will occur.

A partial lunar eclipse occurs when the Moon is always only partially obscured by the Earth's umbra, i.e., only partially in the Earth's umbra. An annular lunar eclipse does not occur on the Moon. Because the Moon is smaller than the Earth, the Earth's umbra is smaller than the Earth's umbra, so there is no such phenomenon as an annular lunar eclipse. The number of lunar eclipses that occur each year is generally two, up to three, and sometimes none.