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Re: [Phys-l] celestial motion

Your calculation of approximately 4 diameters in the time that it takes light to travel from the Sun to the Earth (approximately 8 minutes) appears to be correct.

Daniel Crowe
Loudoun County Public Schools
Academy of Science
dan.crowe@loudoun.k12.va.us

"Anthony Lapinski" <Anthony_Lapinski@pds.org> 8/22/2008 1:26 PM >>>
Thanks for all the interesting/detailed responses so far. I simply wanted
to know the Sun's approximate angular speed across the sky. How many of
its own diameters does it move in 8 minutes. I read somewhere years ago
that it was two diameters, but my calculations showed four, which seemed
too large.