space class tingz

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Across
  1. 3. the temp where all molecules stop moving
  2. 4. what started the universe
  3. 6. the angular distance of a particular point measured eastward along the celestial equator
  4. 9. the great circle of the imaginary celestial sphere on the same plane as the equator of Earth
  5. 10. the group of galaxies that our galaxy is located in.
  6. 13. the galaxy we live in
  7. 14. a nuclear reaction in which atomic nuclei of low atomic number fuse to form a heavier nucleus with the release of energy.
  8. 15. planets closest to the sun
  9. 18. the universe will expand at a constant rate forever
  10. 19. a unit that represents the mean distance between the Earth and our sun. approximately 93 million miles (150 million km).
  11. 23. a small rocky body orbiting the sun
  12. 27. cosmic balls of frozen gas, their tail always faces away from the sun.
  13. 28. a very large star, believed to be in its later stage of evolution
  14. 31. the plane of Earth's orbit around the Sun from the perspective of an observer on Earth.
  15. 32. medium sized rocky bodies that come together to form planets
  16. 33. a torus-shaped region in the Solar System, located roughly between the orbits of the planets Jupiter and Mars, that is occupied by a great many solid, irregularly shaped bodies
Down
  1. 1. galaxy closest to the milky way
  2. 2. rocky planets
  3. 5. gas planets
  4. 7. a unit of distance used in astronomy, equal to about 3.26 light years (3.086 × 1013 kilometres).
  5. 8. small rocky bodies that come together to form protoplanetary bodies and planets.
  6. 11. a temp scale that does not use negative numbers
  7. 12. 9.4 trillion kilometres
  8. 16. distance from the sun to the earth
  9. 17. a circumstellar disc in the outer Solar System, extending from the orbit of Neptune. It is similar to the asteroid belt, but is far larger
  10. 20. a cluster of gas and dust that creates stars
  11. 21. the change in frequency of a wave, resulting in a skewed perception of light and sound
  12. 22. two imaginary points in the sky where the Earth's axis of rotation, indefinitely extended, intersects the celestial sphere.
  13. 24. when dark energy rips matter apart
  14. 25. the universe will stop expanding and collapse
  15. 26. planets farthest from the sun
  16. 27. an imaginary sphere of which the observer is the centre and on which all celestial objects are considered to lie.
  17. 29. a force that causes an increase in the rate of our universes expansion
  18. 30. the angular distance of a point north or south of the celestial equator.