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James N Wilson wrote:

> Your statement that the closer the observed body is to the prime meridian (due
> East or West), the better it will be. I thought that the prime meridian went
> through Greenwich, and that the prime vertical was due east or west. Was I
> taught wrong?

As a sanity check, I went surfing. It is Wikipedia, but I found some humor
in the following:

Prime Meridian

"WGS84 longitudes, which are used by satellite navigation systems, differ
slightly from traditional longitudes. The WGS84 zero meridian is 102.5
metres (336.3 feet) to the east of the line marked at Greenwich....
Curiously, whether by accident or design, the location of the WGS84 0�
meridian is marked in Greenwich by the presence of a waste basket on the
path leading more or less due east from the observatory containing the
transit telescope."

http://en.wikipedia.org/wiki/Prime_Meridian

Bill B.



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