4 ms·
It's the longitude that changes. Note that lat parralels are horizontal, but you measure on which parralel you are, so you measure north-south position.
by kabes 3y ago
It's the longitude that changes. Note that lat parralels are horizontal, but you measure on which parralel you are, so you measure north-south position.
- defrost 3y agoIt's the curvature of the earth that changes local radius - greater at the equator, less at the poles. Hence the arc distance of a fixed angle changes also. I believe you're thinking of distance between lines of longitude which converge at the poles and are at maximal seperation at the equator. I was referring to the arc distance (surface distance) between lines of latitude which don't converge to zero but do get a little smaller closer to the poles (due to the lesser minor radius of the ellipsoid shape to the earth - oblate sphereoid, squashed sphere, not a perfect ball, etc.)