telescopes 1. collect light. 2. bring that light to a single focus
TRANSCRIPT
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Telescopes
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1. Collect light.
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2. Bring that light to a single focus.
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3. Make far away things look closer
(MAGNIFY).
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4. A scale to represent the brightness of
stars, planets, etc.
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5. The brightness of the dimmest object
your telescope allows you to see.
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FYI: Actress Debra Winger
was the voice of E.T.
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6. +6
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7. Hale telescope
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8. 5 meters
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9. 8.3 metersHawaii (Japan)
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QuickTime™ and a decompressor
are needed to see this picture.
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10. -26.5, -4, -1.5
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FYI: Pearls melt in vinegar.
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11. The ability of a telescope to
show 2 close stars as distinct points.
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12. Refracting telescopes(refractors)
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13.
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14. The point where all the light
collected by a telescope is
brought.
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15. The distance between the lens
and the focal point.
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FYI: The average use of a major
league baseball = 7 pitches.
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16. Chromatic aberration
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17. A 2nd lens is mated to the
objective lens.
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18. The size of the portion of the sky
your telescope allows you to see.
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19. The longer the focal length, the
lower the magnification.
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20. The longer the focal length, the greater the field
of view.
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FYI: A duck’s quack DOES
echo.
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21. Reflecting telescopes(reflectors)
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22. Spherical,parabolic
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23. Spherical aberration
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24. coma
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25. “V”
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FYI: Snails can go 3 years
without eating.
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26. Add a correcting lens to the “open” end of
the tube.
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27.
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28.
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FYI: There are 293 ways to make
change for a dollar.
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29. Alt-azimuth
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30. The number of degrees to the east of due north.
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31. The number of degrees above
the horizon.
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32. equatorial
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33. The east/west hour position.
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FYI: All of the pawn shop clocks in the movie “Pulp Fiction” are stuck
on 4:20.
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34. The number of degrees north or south of the
celestial equator.
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35. Gran TelescopioCanarias, Spain
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36. 10.4 meters
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37. 1 A.U.or93 million miles
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38. A light-yearor
5.9 trillion miles
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39. A parsec or 3.26 light-years
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40. ProximaCentauri,1.295 parsec