Question

Lunar eclipse occurs when the earth passes between the moon and the sun.Eclipse of the moon does not occur everymonth why?

Answer 1

Lunar eclipses can only happen when the Moon is opposite the Sun in the sky, a monthly occurrence we know as a full Moon. But lunar eclipses do not occur every month because the Moon'sorbit is tilted five degrees from Earth'sorbit around the Sun.

Answer 2

A lunar eclipse occurs when the Moon moves into the Earth's shadow. This can occur only when the Sun, Earth, and Moon are exactly or very closely aligned, with Earth between the other two. A lunar eclipse can occur only on the night of a full moon.