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RE: Round earth theory vs flat earth theory
I don't understand how the stars can still be the same in the sky if as we are told the Sun is moving through space. The Earth is moving around the Sun while also spinning around. Would not our view of the stars have changed to see others and not the same constellations? This thought confuses me.
How can you know the shape of the Earth by looking at the sky? Modern science cannot prove that the Sun is a physical object, this is only a theory.
To measure the shape of the Earth one measures the EARTH (lack of curvature, lack of spin) and not the sky.
Haha. No geography is done without a reference point.
Stars do "move" through the night sky as the earth rotates. This can easily be viewed by overexposing a camera to the night sky. You see star trails (the path the star takes during the exposure):
You can also see different constellations at different times of year due to the earth's revolving around the sun.
Image Source: https://pixabay.com/en/star-trails-night-long-exposure-828656/
I know they move position but what i am meaning is like 100 years ago they would see the same stars in the same positions we do today. Yet if everything is moving trough space at diffetent speeds and orbits how can we still see the same stars they would have to change?
The stars do move, but they're so far away that it would take thousands of years to be noticeable to the human eye. Astronomers can observe this movement by analyzing the shift in the wavelength of light emitted by the stars. Check the link below for a thorough.
https://www.quora.com/Do-stars-move-or-not
One cosmic year is at least 225 million years long, that's the time it takes for the sun to rotate around the galaxy. Also, consider that the other stars that we can see - all in our neighbourhood of the galaxy - are also moving in almost the same speed.
The stars do move indeed, but it takes hundred of thousands of years before the movements gets visible with the naked eye.
At the other hand, there is also the precession causing the stars to move in circles relative to the spin axis of the earth. The current polar star hasn't always been the ideal pole star, ref wikipedia