true south

mick pinner · #1 11-09-2005, 05:53 PM

could someone tell me where to find out what degrees true south is from magnetic south.

beren · #2 11-09-2005, 06:08 PM

http://www.ngdc.noaa.gov/seg/geomag/...33F14D7D874C2A

plug in your lat and long here

mick pinner · #3 11-09-2005, 06:32 PM

thanks Stuart

cventer · #4 12-09-2005, 11:31 AM

Good australian Government website for this sort of info

http://www.ga.gov.au/oracle/geomag/agrfform.jsp

Best Regards
Chris venter

firstlight (Tony) · #5 28-09-2005, 08:15 PM

Hmmm, interesting.

The Australian site agrees pretty much with Planetarium on my Palm (I have checked this previously using topographical maps) and the NOAA site is almost a degree out (0.8 to be acurate).

any thoughts?

firstlight (Tony) · #6 28-09-2005, 09:37 PM

Oops, NOAA was in minutes, while AGRF was decimal degrees.

Having a bit of trouble working out the maths if there is much discrepancy, (can't remember how to work the calc)