This is what's bothering me. I thought that, for all practical purposes and because of the sun's size and distance from Earth, light rays reaching the Earth are parallel. So, at any instant, it doesn't matter where you are on Earth the (true) heading to the sun is the same.
Like I said, I know I'll regret asking this.
PS.
Sycamore, Southern Hemisphere? Sun is always to your `North`.....
Not if it's southern summer it ain't. Tropic of Capricorn?
The Tropic of Capricorn lies 23° 26′ 16″ south of the Equator. It marks the most southerly latitude at which the sun can appear directly overhead at noon. This event occurs at the December solstice, when the southern hemisphere is tilted towards the sun to its maximum extent.