the moon is visible
at the moment
First occurrence: Before memory
A lunar eclipse happens when the Earth is between
the Sun and the Moon and the shadow of the Earth
covers the moon temporarily. During a partial eclipse, the shadow of the Earth never fully covers the Moon because the Earth
is not perfectly between Sun and Moon.
This results in an eclipse where we always see
a little bit of a moon sickle.
When Sun, Earth and Moon are
perfectly aligned, the shadow of the Earth
does perfectly cover the Moon. This we call this a Total Lunar Eclipse.