How were early astronomers and cultures able to see other planets?

Answer 1

No twinkling of light. from planets. 2. Due to relative motion respect neighboring stars, little or more changes in rising/setting times in the horizon. ..

Without the use of a telescope, early stargazers identified Mercury, Venus, Mars, and Jupiter as planets. Saturn, which moves very slowly in relation to star configuration, was identified as a planet only much later. Neptune and Uranus were discovered after the use of a telescope.

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Answer 2

Ian Aitchison

Early astronomers and cultures were able to see other planets with the naked eye. They observed the movement of planets against the background of fixed stars over time.

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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.