The light does appear to be centered. You can tell because the marker is oriented directly towards the camera on both pics. The reason the highlight is off the line you drew is because the camera (observer) is higher than the light (sun). The highlight would only be spot on if the light and the camera were in the exact same angle. The geometry isn't hard to comprehend. You really think you can correct that big of an angle difference with the shadow?

I told someone this in another post: I have a public sundial that I look at down the street. All year long the thing is accurate to within 15 minutes or less. No one ever adjusts it because it's set in concrete. I would have to measure how many degrees off it is at maximum, but I would guess 1 or 2 degrees (angle of the shadow). I want to test out that globe simulation so I could get a rough estimate of how far off the shadow is between spring and fall, but if those pics are at all accurate, 45+ degrees off would equate to HOURS of error. It's not even close.

The light does appear to be centered. You can tell because the marker is oriented directly towards the camera on both pics. The reason the highlight is off the line you drew is because the camera (observer) is higher than the light (sun). The highlight would only be spot on if the light and the camera were in the exact same angle. The geometry isn't hard to comprehend.

I told someone this in another post: I have a public sundial that I look at down the street. All year long the thing is accurate to within 15 minutes or less. No one ever adjusts it because it's set in concrete. I would have to measure how many degrees off it is at maximum, but I would guess 1 or 2 degrees (angle of the shadow). I want to test out that globe simulation so I could get a rough estimate of how far off the shadow is between spring and fall, but if those pics are at all accurate, 45+ degrees off would equate to HOURS of error. It's not even close.