Quote:
Originally Posted by andyc
If you're familiar with the principle of magnetic declination (angle between the geographic and magnetic poles), you can get the current declination value from websites like http://magnetic-declination.com/ . Not sure just how accurate that site is, but look around and see if there's a better site! Note that declinations vary year-to-year as the magnetic pole wanders a bit. |
That site assumes you are whereever the office of your ISP is located. For Australia,
GA has the official figures.
Caulfield, Victoria
Requested: Latitude -37o 53' 00", Longitude 145o 2' 00", Elevation 0 km, Date 2012/11/16
Calculated: Latitude -37.8833o, Longitude +145.0333o, Elevation 0.00 km, Epoch 2012.8743
Magnetic Field Components
D = 11.574 deg
dD = -0.006 deg/yr