Which accurately describes one of Sir Isaac Newton’s advancements in astronomy?

using a barometer, Newton was able to prove Copernicus heliocentric theory

using trigonometry, Newton was able to calculate the size of our solar system

newton invented the reflecting telescope, which greatly improved the telescopes functionality

newton was able to prove the geocentric theory using his innovation of the refracting telescope

C?

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Yes.

Yes, that is correct. Sir Isaac Newton invented the reflecting telescope, which greatly improved the functionality of telescopes.

Yes, option C correctly describes one of Sir Isaac Newton's advancements in astronomy. He invented the reflecting telescope, which greatly improved the functionality of telescopes. The reflecting telescope uses a curved mirror to gather light, which eliminates the problems associated with chromatic aberration found in traditional refracting telescopes. Newton's invention revolutionized the field of astronomy by allowing for clearer and more detailed observations of celestial objects.