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To: Ethan Clive Osgoode
The Sun is even closer, but you say the Sun's apparent position is off by 2.1 degrees from its actual position. Do you believe the Sun revolves around the Earth?

No and did you look up aberration of light in Wikipedia?

519 posted on 07/06/2008 6:08:46 AM PDT by LeGrande
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To: LeGrande
[LeGrande] Sirius is close to us so its actual position is going to be very close to its apparent position.

[ECO] The Sun is even closer, but you say the Sun's apparent position is off by 2.1 degrees from its actual position.

[LeGrande] ...look up aberration of light...

The moon is much closer than the Sun. Is the moon's apparent position off by more than 2.1 degrees from its actual position? Or less?

525 posted on 07/07/2008 1:17:11 AM PDT by Ethan Clive Osgoode (<<== Click here to learn about Darwinism!)
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To: LeGrande; Ethan Clive Osgoode
to ECO: did you look up aberration of light in Wikipedia?

For what its worth, I looked up aberration of light in Wikipedia. It says
The aberration of light (also referred to as astronomical aberration or stellar aberration)

stellar aberration is independent of the distance of a celestial object from the observer, and depends only on the observer's instantaneous transverse velocity with respect to the incoming light beam, at the moment of observation.
So that has nothing to do with the distance to the sun, and virtually nothing to do with the earth's rate of rotation.

I also looked up light time correction on Wikipedia:
It is independent of the motion of the observer.
And this has nothing to do with the rotation or velocity of the earth either, but rather the velocity of the sun!

Furthermore, I looked up a note about the new moon on Wikipedia, and it says:
Light-time correction for the Sun is negligible because it is almost motionless during 8.3 minutes relative to the barycenter (center-of-mass) of the solar system.
Ahah! See they are saying that the sun isn't moving much and therefore (regardless of the motion of the earth) light time correction isn't much.

I realize that WP is not always accurate, but I'm quoting them because they are who you suggested. If you think they are wrong, just say so and say where you think they are wrong as it relates to my quotes of them.

So there are two things that can cause apparent angular displacement: Stellar Aberration which is a result of a moving observer and is 20 arcseconds for the sun/earth, and light-time correction for a moving light source. But the earth isn't the light source and the sun isn't moving, so you're stuck with just 20 arcseconds of Stellar Aberration - or at least nowhere near your alleged 2.1 degrees!

-Jesse
614 posted on 07/12/2008 1:49:48 AM PDT by mrjesse (Could it be true? Imagine, being forgiven, and having a cause, greater then yourself, to live for!)
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