Definition of diary - a book in which one keeps a daily record of events and experiences. Definition of diary - a book in which one keeps a daily record of events and experiences. dictionary
Lunar Eclipse. A lunar eclipse occurs when the Earth's shadow falls on the Moon, and a solar eclipse occurs when the Moon's shadow falls on the Earth. A look at the geometry of Moon phases would make it appear that a lunar eclipse should happen at every full moon and a solar eclipse at every new moon. This does not occur because the plane of the Moon's orbit is tilted 5.2Â° with respect to the plane of the Earth's orbit around the Sun (the ecliptic plane).
Therefore, lunar eclipses can only occur during a Full Moon. Similarly, a solar eclipse occurs when the Moon passes in front of the Sun casting its shadow upon the surface of the Earth. This can only occur when the Moon is on the same side of the Earth as the Sun-which would normally be when there is a New Moon.