The apparent motion of the Sun, Moon, stars, and planets

Because Earth spins from west to east, the Sun, Moon, and stars appear to rise in the east and set in the west, and the stars seem to circle around the celestial poles; in the Northern Hemisphere, they circle around a point very near Polaris. The times of sunrise and sunset shift through the year, giving the longest days around the June solstice and the shortest around the December solstice in the Northern Hemisphere. The Moon rises on average about 50 minutes later each day as it moves along its orbit. Because Earth orbits the Sun, the constellations visible at night change with the seasons. The planets slowly move against the background constellations, staying near the ecliptic, and occasionally appear to move backward for a while (retrograde motion) when Earth passes them or they pass Earth.

This explanation is AI-generated and can occasionally be wrong. 🚩 Report