9 Jan
2010
9 Jan
'10
7:55 p.m.
Magnetic north is not fixed and, over a timescale of several years, drifts around by several hundred miles.
On 09-Jan-10 19:47, Dave Guimont wrote:
At 11:37 AM 1/9/2010, you wrote:
Randy, True North is used as a reference. Magnetic North changes with observer location and time.
Art, what does mag north have to do with time??