Well, you have to be in error. Not happening where I live (south of 49th parallel). Get a surveyor's transit and theodolite and measure the azimuth of the setting (or rising) sun, and see if it conforms to the geometrical calculations. And, as I suggested, contact an astronomer to ask the question. There are departments of astronomy at many universities.
Point to consider: If the horizon, near or far, has trees removed, the sun will seem as though it has moved farther along its path, due to removal of blockage.
Well, you have to be in error. Not happening where I live (south of 49th parallel). Get a surveyor's transit and theodolite and measure the azimuth of the setting (or rising) sun, and see if it conforms to the geometrical calculations. And, as I suggested, contact an astronomer to ask the question. There are departments of astronomy at many universities.
Point to consider: If the horizon, near or far, has trees removed, the sun will seem as though it has moved farther along its path, due to removal of blockage.