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Author Question: A star with an apparent magnitude of +2.3 and an absolute magnitude of +5.9 lies ________ than 10 ... (Read 23 times)

809779

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on: Jul 27, 2018
A star with an apparent magnitude of +2.3 and an absolute magnitude of +5.9 lies ________ than 10 parsecs away.
 
  Fill in the blank(s) with correct word

Question 2

Explain three advantages the Hubble Space Telescope has over all ground-based telescopes.
 
  What will be an ideal response?


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AngeliqueG

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Reply #1 on: Jul 27, 2018
Answer to Question 1

less

Answer to Question 2

In space, HST can focus on infrared and ultraviolet waves invisible to ground-based observers. With no air, the seeing for Hubble is always perfect and images are much sharper than when viewed through our turbulent blanket of air, even with the best adaptive optics. As the Hubble orbits the Earth, it can be turned to view anything in the sky and not be limited by the local horizon.


809779

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Reply 2 on: Jul 27, 2018
Excellent

kjohnson

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Reply 3 on: Yesterday
Wow, this really help

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