A high luminosity star Study guides, Class notes & Summaries
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Astro 7n Exam 2 with 100% correct answers 2024/2025
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Astro 7n Exam 2A high-luminosity star... 
 
A. is always at a larger distance than a low-luminosity star 
B. emits more light than a low-luminosity star 
C. is always redder than a star with a lower luminosity 
D. is at a lower temperature than a low-luminosity star 
E. is always at a smaller distance than a low-luminosity star - correct answer B 
 
If a red giant appears the same brightness as a red main sequence star, which one is further away? 
 
A. the red giant 
B. we cannot tell 
C. it...
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Astro 7n Exam 2 Question and answers 100% correct 2024
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Astro 7n Exam 2 Question and answers 100% correct 2024 Astro 7n Exam 2 
 
 
 
A high-luminosity star... 
 
A. is always at a larger distance than a low-luminosity star 
B. emits more light than a low-luminosity star 
C. is always redder than a star with a lower luminosity 
D. is at a lower temperature than a low-luminosity star 
E. is always at a smaller distance than a low-luminosity star - correct answer B 
 
If a red giant appears the same brightness as a red main sequence star, which one i...
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ISP 205 exam 3 Questions and Answers
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Which two factors primarily determine the characteristics of a star? 
Ans- its mass and its stage of life 
Star A is identical to Star B, except that Star A is twice as far from us as Star 
B. Therefore... 
Ans- both stars have the same luminosity, but the apparent brightness of 
Star B is four times that of Star A 
Which of the following statements about spectral types of stars is not generally 
true? 
Ans- The spectral type of a star can be used to determine its distance. 
Sirius is a star ...
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GSU ASTR 1020 Final Exam Questions and Answers 2024
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Luminosity - The total amount of power a star emits into space that's measured in watts. 
 
Apparent Brightness - Amount of starlight that actually reaches Earth 
 
HR Diagram - is a graphical tool that astronomers use to classify stars according to their luminosity, spectral type, color, temperature and evolutionary stage. Stars in the stable phase of hydrogen burning lie along the Main Sequence according to their mass. 
 
OBAFGKM - Oh Be A Fine Girl Kiss Me 
 
Main Sequence - the vast majorit...
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Astro 7n Exam 2 Questions And Revised Correct Answers Already Passed
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Astro 7n Exam 2 
Questions And Revised Correct 
Answers 
 Already Passed 
A high-luminosity star... 
A. is always at a larger distance than a low-luminosity star 
B. emits more light than a low-luminosity star 
C. is always redder than a star with a lower luminosity 
D. is at a lower temperature than a low-luminosity star 
E. is always at a smaller distance than a low-luminosity star - 
ANSWER : B 
If a red giant appears the same brightness as a red main 
sequence star, which one is furth...
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Space Exploration|Complete Questions with A+ Graded Answers
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Space Exploration|Complete Questions with A+ Graded Answers 
main sequence 
a diagonal area on an H-R diagram that includes more than 90 percent of all stars 
 
 
white dwarf 
A small, hot, dim star that is the leftover center of an old star 
 
 
Luminosity 
the true brightness of an object 
 
 
light year 
the distance light travels in one year 
 
 
blueshifted 
the doppler shift toward shorter wavelengths of light from an approaching object 
 
 
Redshifted 
stars moving away from Earth 
 
 
Ne...
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Space Exploration|Complete Questions with A+ Graded Answers
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Space Exploration|Complete Questions with A+ Graded Answers 
main sequence 
a diagonal area on an H-R diagram that includes more than 90 percent of all stars 
 
 
white dwarf 
A small, hot, dim star that is the leftover center of an old star 
 
 
Luminosity 
the true brightness of an object 
 
 
light year 
the distance light travels in one year 
 
 
blueshifted 
the doppler shift toward shorter wavelengths of light from an approaching object 
 
 
Redshifted 
stars moving away from Earth 
 
 
Ne...
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Astro 7N Exam Test with Guaranteed Accurate Answers
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A high luminosity star - correct answer Emits more light than a low-luminosity star 
 
If a red giant appears the same brightness as a red main sequence star, which one is farther away? - correct answer The red giant 
 
The heaviest nuclei of all are formed... - correct answer During a supernova explosion 
 
Hydrogen-2 + proton = ____ + energy: - correct answer Helium-3 
 
Which of the following has the smallest radius? - correct answer Neutron star 
 
Why does the main sequence part of a star'...
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Astro 102 Final Exam Ultimate Study Guide | 100% Correct Answers | Verified | Latest 2024 Version
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What are the characteristics of disk stars (yellow) of the Milky Way Galaxy? - High mass stars, the 
Sun, youngest stars, and stars that all orbit in nearly the same plane 
What are the characteristics of halo stars (green) of the Milky Way Galaxy? - Globular clusters, oldest 
stars, stars whose orbits can be inclined at any angle, and stars with smallest abundance of heavy 
elements. 
What are the characteristics of spiral galaxies? - They contain abundant clouds of cool gas and dust, 
are rare...
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Space Exploration|Complete Questions with A+ Graded Answers
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Space Exploration|Complete Questions with A+ Graded Answers 
main sequence 
a diagonal area on an H-R diagram that includes more than 90 percent of all stars 
 
 
white dwarf 
A small, hot, dim star that is the leftover center of an old star 
 
 
Luminosity 
the true brightness of an object 
 
 
light year 
the distance light travels in one year 
 
 
blueshifted 
the doppler shift toward shorter wavelengths of light from an approaching object 
 
 
Redshifted 
stars moving away from Earth 
 
 
Ne...
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