1. Galaxies and Constellations
Ch 29 and 30 Astronomy
Suns Disturbances
Stars Lives
Galaxies and Constellations
Terms to Know
Grab Bag
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500

2. Colored band of light seen near the poles usually after a solar flare
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3. Auroras
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4. Loop of incandescent gas that extends above the photosphere
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5. Prominence
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6. Cooler, darker area of the photosphere with a strong magnetic field
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7. Sunspot
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8. Sudden outward eruption of electrically charged particles
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9. Solar Flare
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10. Auroras are usually seen after these…
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11. Solar Flares
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12. A star begins as a ________, a cloud of gas and dust
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13. Nebula
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14. Who did Ryan Reynolds recently marry? …..Just kidding.
What color of stars are the hottest?
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15. Blue
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16. How many years ago did the Big Bang occur?
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17. 14 billion years ago
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18. Pairs of revolving starts held together by gravity
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19. Binary Stars
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20. How many years would a star with the suns mass stay on the main sequence?
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21. 10 billion years .
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22. What do scientists use to break sun’s light into a spectrum?
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23. spectrograph
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24. What shape of galaxy is the Milky Way?
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25. Spiral
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26. Objects in space moving away from an observer will display a ___ shift
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27. Red
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28. The idea that all matter and energy was compressed into a small volume at one time billion of years ago, exploded and then began to expand is known as the ________
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29. Big Bang Theory
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30. The apparent shift in position of an object when viewed from different locations
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31. parallax
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32. The sun gets its energy form this type of nuclear reaction
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33. Nuclear Fusion
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34. Stars, dust and gas bound together by gravity
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35. Galaxy
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36. The observed change in the frequency of a wave when either the source or observer is moving is known as ______
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37. Doppler shift or effect
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38. The brightness of a star as it appears from Earth is the _____ magnitude
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39. Apparent
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40. The location on the H-R Diagram where most stars lie
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41. Main Sequence
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42. What color are the hottest stars?
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43. Blue
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44. The distance light travels in a year
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45. Light-year
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46. Ursa Major, Draco, and Pisces are all examples of:
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47. Constellations
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48. What are the Northern and Southern Lights?
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49. Auroras
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50. How long do sunspot cycles last?
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51. 11 years
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