Lunar Eclipse, Red Moon or Blood Moon
|Automatic translation||Updated November 10, 2013|
lunar eclipses are eclipses of the moon by the Earth whereas solar eclipses are eclipses of the Sun by the Moon.
It is therefore lunar eclipse during a full Moon. When the eclipse is total, the Moon enters at different points in the cone of darkness and shadow drawn by the Earth opposite the Sun. If the moon moved around the Earth in the same plane as the Earth around the Sun, the ecliptic plane, there would be a lunar eclipse every full moon, so every 29.5 days.
Schema of principle
Image: The image below shows cons on a diagram of a lunar eclipse, the trajectory of it through the cone of shadow and darkness of the earth.
Proceedings of the eclipse
The beginning of the eclipse begins when the Moon enters the penumbra of the Earth (the entry in the shadows, although it has a precise geometric sense, is virtually indistinguishable to the naked eye). From that moment, the Moon is gradually losing its shine.
From that moment the moon emerged gradually from outer shadow and finds all his brilliance, which dazzles our eyes (for the same reasons as for the entry, the observer has the impression that the eclipse is over well before leaving the darkness that is indistinguishable).
Image: Photography of the entry of the Earth's shadow on the Moon.
Image: Photography of the exit of the Earth's shadow on the Moon.
The eclipsed Moon is still visible
It is interesting to note that at the heart of the eclipse the moon does not disappear, although it is in the shadow of the Earth.
Image: Photograph of the Moon when it is obscured by the shadow of the Earth.