True South Cairns

[UK1 (Rob)]

Am I right that Cairns is 7 degrees true south from Magnetic South ?
I knew Melbourne was about 13

Thanks

[gary]

Hi Rob,

The convention is that magnetic declination is the angle between magnetic north
and true north. When it is east of true north, it is positive.

At Cairns it is about +6.9 degrees East.

[multiweb (Marc)]

Got to make sure I look at the right color on the compass pin this time so I don't align north...

[mithrandir (Andrew)]

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

Australian Geomagnetic Reference Field Computation

Requested: Latitude -16o 55' 00", Longitude 145o 46' 00", Elevation 0 km, Date 2012/11/14
Calculated: Latitude -16.9167o, Longitude +145.7667o, Elevation 0.00 km, Epoch 2012.8689

Magnetic Field Components

D = 6.909 deg
dD = -0.026 deg/yr

That lat/lon is Cairns North.

[UK1 (Rob)]

many thanks to all replies
Rob