@Rally, You maybe right according to NOAA'S NGDC website [0], Beijing's magnetic north declination is ~-3° 6' 17" changing by -2.0' per year which is almost the same degree of "tilting" of the Forbidden City.
[0] http://www.ngdc.noaa.gov/geomag-web/#declination On Tue, Jan 31, 2012 at 10:30 PM, Rally de Leon <rall...@gmail.com> wrote: > Maybe it's aligned to a particular Magnetic North at the time of > construction?? :-) > > > On Tuesday, January 31, 2012, maning sambale <emmanuel.samb...@gmail.com> > wrote: >> Interesting, i always thought the forbidden city is oriented on a perfect >> north-south direction. Any idea why its "tilted" in osm? >> >> >> http://wiki.openstreetmap.org/wiki/File:Forbidden_city_2012-01_cloudmade-fresh.png -- cheers, maning ------------------------------------------------------ "Freedom is still the most radical idea of all" -N.Branden wiki: http://esambale.wikispaces.com/ blog: http://epsg4253.wordpress.com/ ------------------------------------------------------ _______________________________________________ talk-ph mailing list talk-ph@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-ph