when is eclipse
A lunar eclipse is an eclipse of the Moon rather than the Sun. It happens when the Moon passes through Earth's shadow. This is only possible when the Moon is in the Full Moon phase. For more information, see Lunar Eclipses for Beginners.
Eclipses. A total eclipse of the Sun occurs when the Moon passes directly in front of the Sun, blocking out its light. Although the entire eclipse can last a couple of hours, its spectacular total phase lasts only a few minutes. Learn more about solar eclipses.