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Home Q & A Board Science-Related Homework Help Physics
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smither smither
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11 years ago
Astronomers measure stellar distances in three different units. The smallest of these is  
    A) the light-year.  
   B) the absolute magnitude.  
   C) the astronomical unit.  
  D)  the parsec.
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sniper11bsniper11b
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#1
11 years ago
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#2
11 years ago
C) the astronomical unit.

1 parsec = 3.6226 light years
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#3
11 years ago
C) the astronomical unit. (Not really used for stellar distances unless one counts the Sun itself. I might like to say "oww, ahh!" at 1.6 million AU to Vega, but astronomers are a bit more serious than I and will take 25.3 light-years, or even better, 7.76 parsec.)

Edit: My computer has gone insane.
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