Re:Lunar Eclipse: An Email to a Daughter and Son-in-Law
by kgwgk on Tuesday July 16, 2019 @03:32PM
(#20453125)
For what it’s worth, we also call eclipses those that happen in Jupiter when one of its large moons is between Jupiter and the Sun. Those are also real, and allowed for the first estimate of the speed of light: https://en.m.wikipedia.org/wiki/Rømer%27s_determination_of_t...
In case of lunar eclipse, the view of the Moon is obscured by the shadow of Earth. I.e. Sun's light is blocked by Earth, so it doesn't reflect back to Earth from the Moon. In case of solar eclipse, the view of the Sun is obscured by the Moon itself (which throws shadow on Earth), i.e. you don't see direct light from the Sun blocked by the Moon.
Both are pretty real and both are called eclipses.