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How do scientists know the size of the sun?

Answer 1

Olivia Aldridge

Angular diameter can be measure by instruments from Earth.

Distance to Sun was found by transit if Mercury/Venus measurements long time back.

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Answer 2

Ariana Acosta

Scientists know the size of the Sun through a method called helioseismology, which involves studying the oscillations or vibrations on the surface of the Sun caused by sound waves bouncing around inside it. By analyzing these oscillations, scientists can determine the Sun's internal structure and infer its size. Additionally, observations from space-based telescopes and spacecraft missions provide precise measurements of the Sun's diameter and other physical characteristics.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.