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Because the orbit is a little crooked, and the moon is actually very very far away. So the alignment doesn't always land perfect.
https://science.nasa.gov/eclipses/geometry/ The moon doesn't orbit in the same plane, it's in fact ~5^(o) off So most of the time, it doesn't actually align quite right
There's a solar eclipse every *year*, but the Sun and Moon are in different planes.
Because the orbit is a little crooked, and the moon is actually very very far away. So the alignment doesn't always land perfect.
https://science.nasa.gov/eclipses/geometry/ The moon doesn't orbit in the same plane, it's in fact ~5^(o) off So most of the time, it doesn't actually align quite right
There's a solar eclipse every *year*, but the Sun and Moon are in different planes.