Include Sun's Diameter in Star Distance Measurement?

  • Thread starter DB
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In summary, when using the Trigonomic method to measure the distance of stars from Earth, the baseline of the triangle should only include the size of Earth's orbit and not the diameter of the Sun. The Sun's position near the center of the orbit should not affect the measurement.
  • #1
DB
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When measuring the distance of stars from the Earth using the Trigonomic method, using the parralax and Pythagorem theory, do you include the diameter of the sun with the 2 Au when measuring the baseline of the triangle?

I'm assuming yes, but not sure.

Ty
 
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  • #2
DB said:
When measuring the distance of stars from the Earth using the Trigonomic method, using the parralax and Pythagorem theory, do you include the diameter of the sun with the 2 Au when measuring the baseline of the triangle?

I'm assuming yes, but not sure.

Ty
No. You're just using the size of the Earth's orbit. The Sun just happens to be (near) the center. (Ellipse, you know)
 
  • #3
thnx i can see it now
 

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