What happens during lunar eclipse?

When a lunar eclipse is occurring, the Sun, moon, and Earth are all lined up together. When those three are aligned, that is the only time an eclipse will happen. So, if only the Sun and Earth are aligned, it will only be a partial eclipse, or there will be no eclipse at all.

When lunar eclipses occur, they are joined by a full moon. This moon is passing through Earth's shadow. People viewing it may see it as red, which is why it is known as the blood moon. Along with that, there are two shadows that join the moon. These shadows are the umbra and penumbra.

The moon passes within the earth's umbra during a lunar eclipse, and the sun, moon, and earth are all aligned. Any variation of this, and it is only a partial lunar eclipse or no eclipse, will occur. On a night that there is a lunar eclipse, it is accompanied by a full moon. The moon passing through the shadow of the earth may appear red, which is why it is referred to as a blood moon.

Two different kinds of shadows that fall on the moon are the umbra, which is a complete, dark shadow. Or the penumbra, which is a partial shadow. However, the best part of an eclipse is during the middle, when the moon is the umbral shadow.