Luminosity - Study guides, Class notes & Summaries
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ASTRO 7N EXAM 2 2024 WITH 100% CORRECT ANSWERS
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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 further away? 
 
A. the red giant 
B. we cannot tell 
C. it depends on the phase o...
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Exam 2B - Binghamton University ASTR 114 | Latest 2023
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This exam is entirely multiple choice or true/false. A=T, B=F 
TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false. 
1) The photosphere is about 100 times the diameter of the Earth, and large sunspots are larger than 
our whole planet. 
1) 
2) Granulation is the most obvious proof of solar convective energy transport. 2) 
3) The solar corona is much cooler than the Sun's surface, hence we must wait for a total solar 
eclipse to glimpse it with the naked eye. 
3)...
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ASTR 114 Astronomy - Final Exam "Cheat Sheet" | Latest 2023-2024
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-1.5 magnitude Sirius appears 25x brighter 
than 2 magnitude Polaris. 
 “All neutron stars are pulsars, but not all 
pulsars are neutron stars” FALSE 
 “Spectroscopic Binary” is the term given to 
a pair of stars that we can determine are 
orbiting each other only by measuring their 
periodic Doppler shifts. 
 A 6.8 solar mass neutron star does NOT 
exist. 
 A loop of gas and charged particles 
following the magnetic field lines between 
sunspot’s poles is a Prominence/...
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Astro 7N Exam 2 Solved 100% Correct!!
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Astro 7N Exam 2 Solved 100% Correct!!
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Astro 102 - Final Exam Set Questions With 100% Correct Answers | Latest Update
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Astro 102 - Final Exam Set 
Questions With 100% Correct 
Answers | Latest Update 
What is cosmology? - ANSWER : the study of how the 
distribution of galaxies changes over time 
How does the size of a supernova compare with the size 
of the observable universe? - ANSWER : The size of a 
supernova is 2/3 the size of the observable universe 
Cepheids with longer periods have... - ANSWER : 
higher luminosities 
A Cepheid with a period of 30 days has an average 
luminosity that is.... - ANS...
And that's how you make extra money
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PSU Astro 001 Unit 3 Exam | 50 Questions with 100% Correct Answers | Updated | Download to score A+
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A large luminosity star - 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 further 
away? - The red giant 
The heaviest nuclei of all are formed - During a supernova explosion 
Hydrogen-2 + proton = ? - Hydrogen-2 + proton = Helium-3 
Why does the main sequence part of a star's life end? - The hydrogen in the core is exhausted 
Many of the brightest 100 stars viewed from Earth are not on the main sequence (even tho...
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Astro 7N Exam 2 Questions and Answers | Verified Updated| Latest 2024.
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Astro 7N Exam 2 Questions and Answers | Verified Updated| Latest 2024. 
1. 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 
2. If a red giant appears the same brightness as a red main sequence star, which one is 
farther away? 
 A:...
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Astronomy 1020 Final Exam Study Questions and Answers UPDATED 2024
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What is the difference between brightness and luminosity? - Brightness is how it appears to us, distance is a factor. Luminosity is how much total light a star gives off. 
 
What is parallax? - Over the course of a year, the star's position in the sky appears to shift back and forth, returning to its original position 1 year later. The amount of this shift— the angle between one extreme in the star's apparent motion and the other— is equal to twice the parallax. You can use parallax to fin...
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Astro 7N Exam 2 Questions and Answers | Verified Updated| Latest 2024.
- Exam (elaborations) • 15 pages • 2024
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Astro 7N Exam 2 Questions and Answers | Verified Updated| Latest 2024. 
1. 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 
2. If a red giant appears the same brightness as a red main sequence star, which one is 
farther away? 
 A:...
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Astro 7n Exam 2; Questions with Complete Solutions 100% Verified
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Astro 7n Exam 2; Questions with Complete Solutions 
100% Verified 
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
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