Hello DAVID,

On Thursday March 27 2008 17:25, you wrote to me:

 DW> -> Of course. You can observe that yourself when it flies over shortly
 DW> after -> sundown or before sunrise. If it goes from the west to east
 DW> after sundown or -> from east to west before sunrise, you see it as a
 DW> bright light that quite -> suddenly "turns off" when
it enters the
 DW> earth's shadow.

 DW> Does the ISS ever appear to travel from east to west?

No, it doesn't. I was just generalising.

 DW> Its orbital movement around the earth is from west to east, and it
 DW> moves a whole lot faster than the earth rotates.

Indeed. Other satellites however can appear to move in retrograde direction
and then the more general case applies.


Cheers, Michiel

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