Before revision: To an observer on a planet with an orientation and rotation similar to those of Earth, the subsolar point will appear to move westward , completing one circuit around the globe each day, approximately moving along the equator.
After revision: with a speed of 1600 km/hTo an observer on a planet with an orientation and rotation similar to those of Earth, the subsolar point will appear to move westward , completing one circuit around the globe each day, approximately moving along the equator.