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What are three specific types of galaxies? |
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Definition
Spiral, Elliptical, and Irregular |
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What is the diameter of our galaxy? |
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Definition
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What is the width of our galaxy? |
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What component of material of the Milky Way Galaxy prevents us from photographing the galactic center at optical wavelengths? |
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Term
The Milky Way in which the Sun resides is an example of which type of galaxy? |
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Term
The distance of the Slar System from the center of our galaxy is about... |
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Term
What type of spectra (or light) allows us to decipher our galaxy type? |
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Where is the solar system located in our galaxy? |
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In which constellation is the center of our galaxy located in? |
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Term
The center of our Milky Way Galaxy can be best observed with which electromagnetic wavelengths? |
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Definition
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Term
What is the most common chemical element in the galaxies? |
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Term
Which set of laws is violated by the motion of the stars in the disk of spiral galaxy? |
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Term
What is the estimated mass of the black hole in the center of our galaxy? |
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Definition
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What is the estimated number of stars in our galaxy? |
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Definition
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Term
Approximately how long does it take the Sun to orbit the Milky Way Galaxy? |
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Definition
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Term
What objects outline the spirals of a spiral galaxy? |
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Definition
OB associations, H II Regions, and Giant molecular clouds |
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