Earth and Space Final Notes 43-56

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Across
  1. 4. the study of God's creation beyond the atmosphere
  2. 6. the two points on the ecliptic at which the sun is farthest from the celestial equator
  3. 7. telescope that uses a series of lenses to produce an image
  4. 9. scientific law that states that the planets' orbits are ellipses
  5. 12. the idea that the planets, including Earth, orbit the sun
  6. 13. a Hertzsprung-Russell diagram is a two-dimensional graph that compares stars by their brightness and :?
Down
  1. 1. unit of measurement approximately equal to the distance between the sun and the earth
  2. 2. a planet's farthest distance from the sun
  3. 3. The equation of time is the relationship between apparent solar time and ?
  4. 5. largest planet in our solar system
  5. 8. type of orbit in which a satellite stays above the same point on the earth's surface
  6. 10. includes the star Regulus
  7. 11. the first person to travel in space