space vocab

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Across
  1. 2. the curved course of an object like a spacecraft around a star,planet,or moon
  2. 4. temperature scale that is measured beginning at absolute zero
  3. 5. a cloud made out of gas and dust thats seen in the night sky
  4. 7. class a group in which stars are classified
  5. 10. a change in the characteristics of a atomic nucleus when it is being split apart or conjoined with the nucleus of another atom
  6. 11. a scatter plot of stars classifying the relationship between the stars' absolute magnitudes or brightness versus their stellar classifications or temperature
  7. 13. a natural object found outside the earths atmosphere
  8. 14. synonym of brightness
  9. 16. galaxies galaxies that have no defined structure or shape
Down
  1. 1. a representation which defines a flow of activities in a organized unit
  2. 3. all matter and space in one place , contains many galaxies
  3. 6. galaxies smooth circular narrow shaped galaxy
  4. 8. the intensity of heat in a object
  5. 9. a large circular shaped flaming bright object seen in the nighttime
  6. 12. a large body of matter with no definite figure
  7. 15. a group of many stars made by gas and dust , held by gravity