Question

In your own words, explain a crucial piece of evidence that an ancient Greek astronomer could have used to support the geocentric model of the solar system.

this one might be easy and i just need to think about it more. but IDK

Answer 1

this is what i got.

The clouds move around the Earth, as well as everything else in the atmosphere. So, this lead to conclusions that everything revolves around the Earth.

is that right??

Answer 2

Yes! everything else does, like the moon and sun you're correct

Answer 3

thank you!

Answer 4

Odd question this.
Geocentric means that the earth is the centre of the solar system. Well, if the Greek astronomer had looked out by day, they'd have seen that cometh the dawn of a new day, cometh the rising sun. OK, so the sun RISES in the EAST and SETS in the WEST ... doesn't it ? And, to do that, it's got to mover across the sky, and thus it moves round the earth ... doesn't it ? And then there's the moon which also seems to move across the sky.
So, the astro might have figured, the sun moves round the earth, and therefore the earth must be the centre of the soar system.
He might then have gone out to walk the dog, or something.
What's intriguing about this question, apart from the Geo word, is that it doesn't ask for "evidence" that the earth goes round the sun, and that the sun is the centre of the solar system, which is how, indeed it got the system got given the name "solar".
As an aside here, the good old "flat earth" idea. Well, if you happen to live near a very large pool of water - an ocean will do nicely, and you look out to sea and on to the horizon, it all looks pretty flat. Then there's that funny horizontal line at the horizon and you can't see any further. So, you might be tempted to think that the earth is flat (water finds its own level, and that level IS level), and that if you get to the horizon you'll fall of the edge.
I think that that is one reason why sailors and other seafarers had a bit of trouble daring to test out the idea that there was something over the horizon, called MORE EARTH. Take quite a bit of nerve to travel to the edge of the world and hope you don't fall off. Especially if when you think you've got there, the weather happens to be blowing a hurricane.