Chapter 10. Stars

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Across
  1. 5. pass through the atmosphere and hits Earth's surface
  2. 6. a cloud of dust, gases, and debris
  3. 7. how bright a star appears to us is called ____ magnitude
  4. 9. smaller stars, like our sun, are ___ stars
  5. 10. chunk of frozen gases, water, and dust that orbits the sun
  6. 12. closest star to Earth
  7. 13. a large group of stars held together by gravity
  8. 15. hottest stars have this color
  9. 17. measurement of a star's apparent movement over time
  10. 19. a huge star system that covers many light-years of space
  11. 20. rocky object that enters Earth's atmosphere and lights up
  12. 22. how bright the star really is called _____ magnitude
  13. 24. brightness of a star
Down
  1. 1. stars that regularly or repeatedly change in magnitude are called _____ stars
  2. 2. a neutron star that spins rapidly on its axis
  3. 3. rocky object in space
  4. 4. telescopes that bend light to make objects seem larger
  5. 5. two or three stars held together by gravity is called ______ star group
  6. 8. existing star flares up and becomes brighter than normal
  7. 10. a group of stars that form a pattern
  8. 11. scientific study of stars
  9. 14. telescope that break starlight into its colors
  10. 15. contains two stars is called ____ system
  11. 16. stars are glowing ____ of gases that produce light
  12. 18. made of irregularly shaped pieces of rock, metal, and dust
  13. 21. largest and brightest stars
  14. 23. when a massive supergiant star collapses and disappears from space