Across
- 1. Relating to, belonging, or living on the Earth
- 5. The apparent daily east-to-west movement of celestial objects in the sky
- 6. the large main circular orbit centered near the Earth in the ancient Ptolemaic system that carried a planet or the center of its smaller epicycle
- 7. Relating to the sky, or outer space
- 10. The path the Sun takes across the sky over the course of a year
- 12. The apparent movement of a celestial body in a direction opposite to the normal motion within its system
- 14. An imaginary, giant ball of infinite size that surrounds the Earth and serves as a map for locating celestial objects
- 17. The apparent daily movement of the stars and the Sun as seen from Earth
- 19. The blocking of light from one celestial body by another
- 20. A figure-eight-shaped diagram that shows the position of the Sun in the sky from the same location, same time of day every day for a year
Down
- 2. A small circle whose center moves along the circumference of a larger circle
- 3. A way to describe the universe that places Earth at the exact center
- 4. A group of visible stars that form a perceived pattern/shape in the sky
- 8. The clear sky
- 9. An imaginary belt in the sky that tracks the path of the sun, moon, and planets
- 11. A way to describe the universe that places the Sun at the exact center
- 13. Division of the year marked by distinct changes in the weather, temperature, and daylight length
- 15. A twice-yearly event when the Sun is directly above Earths equator
- 16. When the Sun reaches its highest or lowest point in the sky
- 18. A popular pattern/group of stars that forms a recognizable shape in the night sky