astr113iClicker Questionstest1

astr113iClicker Questionstest1 - iClicker Questions...

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iClicker Questions 1.31.2008 The distance of an object that has a parallex of one arcsecond is 3.26 lights years. Star A’s apparent magnitude is 11 while Star B’s apparent magnitude is 12. The star that is brighter is how many times brighter than the dimmer star? Star A is about 2.5 times brihter than Star B Given the following apparent(m) and absolute(M) magnitudes, which star appears brightest in the sky to us on Earth? Star A with m=1 and M=4 because when m is smallest it is the brightest Given the following apparent(m) and absolute(M) magnitudes, which star would be the brightest in the sky if all stars were at the same distance? Star E with m=5 and M=.05 because M is the smallest…that makes it the brightest Given the following magnitudes, which star is the most distant from Earth? Star A with m=1 and M=-4 Bc of the difference between m and M. .the smaller distance is closer Consider the spectral classification of stars using only the letters A B F G K M O. When these are arranged in order from coolest
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This note was uploaded on 04/08/2008 for the course ASTR 113 taught by Professor Geller during the Spring '08 term at George Mason.

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astr113iClicker Questionstest1 - iClicker Questions...

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