Quizlet physci exam 3: Astronomy Test

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  1. AU is used in...: solar system
  2. between 23 1/2M & 23 1/2S latitude: part of the earth that experiences the Sun directly overhead at noon
  3. Bode's Law: planet may exist between Mars & jupiter.
  4. Bode's Law found: ceres
  5. calculated earth's circumference: Eratosthenes
  6. cause of meteor showers: remnants of old comets
  7. caused by solar wind: aurora borealis
  8. Cepheid Variable Stars: used to determine the distance of nearby galaxies
  9. classified galaxies: edwin hubble
  10. discovered by a telescope: Uranus
  11. Doppler shift lines indicate: galaxies are moving away from a central point
  12. Earth's Magnetic field: protects life from the ravages of solar wind
  13. ecliptic: plane of our solar system
  14. Edwin hubble: recongnized sprial nebulae as galaxies
  15. elliptical orbit of planets: Johannes Kepler
  16. failed star: brown dwarf
  17. first to see jupiter's moons: galileo
  18. foucault's pendulum indicates what?: rotation on earth
  19. H-R diagrams: absolute magnitude and temperature
  20. has a moon larger than mercury: jupiter
  21. has abundant liquid water: Earth
  22. has rings to be studied by Casinni probe: Saturn
  23. has single moon: Earth
  24. has star embedded in them: a bright emission nebula
  25. has the tallest volcano of all planets: Mars
  26. has thick carbon dioxide atmosphere: Venus
  27. have dense and rocky crusts: Inner Planets
  28. heliocentric model: nicolaus copernicaus
  29. Horse Head: dark nebula
  30. Hubble Constant: measurement used to calculate age of universe
  31. its moon has nitrogen atmosphere: saturn
  32. Jupiter's moon callisto: Galileo Galilei
  33. Kepler's Law: as planets approach the Sun they increase in velocity.
  34. law of planetary motion: johannes kepler
  35. longest canyon: mars
  36. Milky way: our home galaxy
  37. most massive planet: Jupiter
  38. no moon: mercury
  39. Nova: a star that suddenly brightens and then fades back its previous magnitude
  40. Nuclear Fusion: presence of Solar Hydrogen and Helium indicates
  41. objects that fail to become a star: brown dwarfs
  42. outer planets: lower density
  43. planet lying on its back: uranus
  44. planet with an atmosphere: Mercury
  45. planet with the red spot: jupiter
  46. Planetary nebula explanation: it is the outer shell of a star that experienced a nova expansion
  47. Pluto's moon, charon: farthest moon from Sun
  48. polar ice caps of CO2: Mars
  49. primary fuel for nucler fusion: hydrogen
  50. Pulsar: left after super nova explosion.
  51. red giant star: core collapses, causing rapid heating which expands the outer layers.
  52. rotates clockwise: venus
  53. saturn's moon titan: has nitrogen rich atmoshpere
  54. Sea of Tranqulity: a volcanic lava plain
  55. sideral day: the time for the earth to make a 360 spin
  56. size of star is determined: using absolute magnitude
  57. slowest spinning planet: Venus
  58. solar eclipse occurs: occasionaly at noon time during new moon phase
  59. solar wind: causes tails of comets to point away from Sun
  60. spiral galaxies: Edwin Hubble
  61. spring tide: causes flooding
  62. stars are born: in collapsing nebulae
  63. Stellar parallax: used to measure distance to stars
  64. studied earth motions with a pendulum: foucault
  65. Sun Spots: Solar prominences
  66. tail of comet: only visible when near sun
  67. the Roche Limit: relationship explains the location of planetary rings and moons.
  68. V: White Dwarfs
  69. W: Blue-White Giant
  70. X: Red Giant
  71. Z: Sun-like Star