- #1
Zman
- 96
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How is the sun Earth distance currently determined?
I read about a method where the distance between the Earth and Mars is determined when they are in opposition using parallax.
Knowing the orbit period of both Mars and the earth, Kepler’s third law is then used to determine the Earth sun distance.
Is this method seen as the best or is a different method used?
I read about a method where the distance between the Earth and Mars is determined when they are in opposition using parallax.
Knowing the orbit period of both Mars and the earth, Kepler’s third law is then used to determine the Earth sun distance.
Is this method seen as the best or is a different method used?