Astronomy

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Across
  1. 3. line of latitude in southern hemisphere; 23.5 degrees
  2. 5. Sun shines on a tropic, depending on tilt and revolution during the year, “sun stands still”
  3. 6. position of Earth around the sun
  4. 7. turning around another object (1 Earth revolution = 365 1/4 days)
  5. 9. an imaginary line through the center of Earth (or another planet)
  6. 11. longitude line that runs through Greenwich, England; 0 degrees
  7. 12. First day of Autumn, equal daylight and night time, sun shines on the Equator
  8. 13. turning on an axis (1 Earth rotation = 24 hours)
  9. 14. autumn and spring; the sun's rays are directed on the Equator giving equal amounts of daylight and darkness
  10. 15. lines that run east/west on the globe ex. Equator longitude lines that run north/south on the globe ex.
  11. 16. Sun shines on the equator, occurs twice a year, “equal night”
Down
  1. 1. First day of Summer, the longest day of sunlight, the sun shines on the Tropic of Cancer
  2. 2. is the study of galaxies, stars, planets, and other celestial objects
  3. 3. line of latitude in northern hemisphere; 23.5 degrees
  4. 4. First day of Spring, equal daylight and night time, sun shines on the Equator
  5. 8. First day of winter, shortest day of sunlight, sun shines on the Tropic of Capricorn
  6. 10. long of longitude where each day begins; 180 degrees