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Aristarchus' Hypotheses
Hello everyone,
My name is Robert, I'm from Brisbane Australia, and I have recently sparked an interest in science. I have been reading about the early astronomers - in particular the work of Aristarchus - and I have a question regarding his third hypothesis:
3) When the moon appears to us halved, the great circle which divides the dark and bright portions of the moon is in the direction of our eye.
I don't understand what Aristarchus meant by "the great circle which devides the dark and bright portions of the moon is in the direction of our eye."
I hope someone can simplify for me this phrase as it is turning out to be quite cryptic in my mind!
Kind regards
Robert
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