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banana
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gold
Win 50 points!
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fairy
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25
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thief
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20
×
What is a volume of space mostly empty of matter, such as oxygen, to breathe; vacuum or microgravity?
Vacuum
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20
×
On which region of the sun can you find sunspots?
The photosphere
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10
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What is the luminous star composed mainly of hydrogen and helium around which Earth and other planets revolve?
The sun
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banana
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rocket
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rocket
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thief
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20
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VY Canis Majoris is a very, very large star. It is an extremely bright, cool red star. Where would it be found on the HR diagram?
Top right
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20
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What is a sudden eruption of magnetic energy released on or near the surface of the sun?
Solar Flare
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25
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Describe microgravity.
The almost complete absence of gravity that can only be found in space.
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15
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About how long does it take light to travel from the sun to earth?
8 minutes
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20
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Where are blue stars found on an HR diagram?
At the left.
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20
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What is a large, bright, gaseous feature extending outward from the sun's surface, often in a loop shape?
Prominence
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25
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Which star would have the greatest true brightness; Canopus- absolute magnitude of -2.50 or Rigel- absolute magnitude of -8.10?
Rigel
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25
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How do astronomers use our sun to measure other stars?
It's solar mass
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trap
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fairy
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25
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gift
Win 25 points!
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banana
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20
×
Which region of the sun produces all the heat and light we receive on Earth?
The core
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thief
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25
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gold
Win 50 points!
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gift
Win 25 points!
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baam
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