Why does the Sun appear to rise in the east and set in the west?

Why does the Sun appear to rise in the east and set in the west?

• A. Earth rotates from east to west, causing objects in the sky to appear to rise in the east and move westward.
• B. The Sun orbits Earth once per day.
• C. The Sun's gravity drags the sky around.
• D. The Moon blocks the Sun at certain times.

Answer: (B)

Daily sunrise and sunset come from the Earth spinning on its axis toward the east. As the planet rotates, your location gradually faces the Sun, so it appears on the eastern horizon at sunrise, travels across the sky, and sinks below the western horizon. The Sun is far away and does not complete a daily orbit around the Earth; the apparent motion is produced by Earth’s rotation. Other ideas, like the Sun orbiting Earth in a day, gravity dragging the sky, or the Moon blocking the Sun regularly, don’t explain the consistent east-to-west daily pattern.

Daily sunrise and sunset come from the Earth spinning on its axis toward the east. As the planet rotates, your location gradually faces the Sun, so it appears on the eastern horizon at sunrise, travels across the sky, and sinks below the western horizon. The Sun is far away and does not complete a daily orbit around the Earth; the apparent motion is produced by Earth’s rotation. Other ideas, like the Sun orbiting Earth in a day, gravity dragging the sky, or the Moon blocking the Sun regularly, don’t explain the consistent east-to-west daily pattern.