This motion is due to the Earth's rotation. As the spin of the Earth carries us eastward at almost one thousand miles per hour, we see stars rising in the East, passing overhead, and setting in the West. The Sun, Moon, and planets appear to move across the sky much like the stars.
calculated by dividing the rise by the run.the scale of the map is 1:100,000. 15cm, and the scale of the map is 1:100,000. 10cm, and the scale of the map is 1:100,000