I seen the other day the moon lit directly below or towards my horizon perfectly.
My question, is there a term for when a moon's crescent is aligned with the viewer's horizon?
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No formal astronomical term, but it is sometimes said to be "on its back"
Examples from "weather lore"
When the moon lies on its back
Then the sou-west wind will crack.
When the moon is on its back,
She sucks the wet into her lap.
It's sure to be a dry moon if it lies on its back
so you can hang your hat on its horns.