22 Dec
2011
22 Dec
'11
7:48 a.m.
Polaris is offset to the west of where it should be; if it was the magnetic offset, wouldn't it be east of true, from SLC? On 12/22/11, Brent Watson <brentjwatson@yahoo.com> wrote:
Sounds like he difference between magnetic and true. In Salt Lake that difference is about 14 degrees. The compass in the phone is almost surely magnetic, but the software should be able to compensate by using the GPS for position. Magnetic variation is pretty well known.