Savannah Thrasher Vocabulary Crossword

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Across
  1. 1. a rocky wo rld made mostly of rock and metal with a solid surface.
  2. 5. the apparent daily movement of celestial objects like the Sun, Moon, and stars across the sky from east to west
  3. 6. the large main circle centered on or near the Earth along which the center of a planet's smaller secondary circle (the epicycle) was thought to move.
  4. 7. relating to the sky, the stars, or any natural object in outer space.
  5. 10. the apparent path that the Sun—and the planets and Moon—seem to take across the sky over the course of a year as viewed from Earth
  6. 12. the apparent backward movement of a planet across the night sky, or a physical movement in the opposite direction of a system's general rotation
  7. 14. an imaginary, giant ball surrounding Earth where stars, planets, and the sun appear to be stuck.
  8. 17. the apparent yearly movement of the stars and the Sun across the sky, caused by Earth's orbit around the Sun
  9. 19. an event where one celestial body blocks light from another or passes into its shadow
  10. 20. a figure-eight-shaped diagram that shows the changing position of the Sun in the sky when viewed from the same location at the exact same time every day for a full year
Down
  1. 2. a small circular orbit whose center moves along the edge of a larger circular orbit
  2. 3. an old astronomical idea that puts the Earth at the center of the universe while the sun, moon, planets, and stars revolve around it
  3. 4. an officially defined region of the celestial sphere containing a group of stars that appear to form a recognizable pattern when viewed from Earth.
  4. 8. an old, disproven idea that a mysterious substance filled the universe beyond Earth to let light and gravity travel.
  5. 9. an imaginary band or belt in the sky that follows the path the sun appears to take over the course of a year.
  6. 11. an astronomical system that places the Sun at the center, with the Earth and other planets revolving around it
  7. 13. is a division of the year based on the position of Earth's orbit around the Sun and the tilt of its axis
  8. 15. a twice-yearly event when the Sun is positioned directly above Earth's equator, causing day and night to be of approximately equal length worldwide
  9. 16. one of two days a year when the Sun reaches its farthest point north or south of the Earth's Equator
  10. 18. a popular, easily recognizable pattern or group of stars in the night sky that is not an official constellation