Astr 102 exam Study guides, Class notes & Summaries
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Bundle For ASTR 102 Exam Questions All Correctly Answered New Verified Edition
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ASTR 102 exam 2 2024| Questions with 100% Solutions| A Rated
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Rank the following from earliest to latest: protostars, dark globule, star cluster, supernova - Dark 
globule, protostars, supernova, star cluster 
Which type of light will be most affected by interstellar extinction? - Ultraviolet 
Globular clusters formed _______________ the gas from which our galaxy formed had time to collapse 
into a disk. - before 
The first stage of stellar evolution is the ___________________ phase - protostellar 
Time moves slower the _____________ you're moving - faste...
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ASTR 102 Midterm Exam Questions | 100% Correct Answers | Verified | Latest 2024 Version
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ASTR 102 Midterm Exam Questions | 
100% Correct Answers | Verified | Latest 
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ASTR 102 ExamQuestions with Correct Answers/Already Grade A+/ latest 2024/2025
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Life expectancy of a 10Msun star - Answer 10 million years: life expectancy of a 
_______Msun star 
life expectancy of a .1 Msun star - Answer 100 billion years: life expectancy of a 
_______Msun star 
Coolest stars: ___________ K - Answer 3,000 K 
Hottest stars: ___________ K - Answer 50,000 K 
Least luminous stars: 10^_____ Lsun - Answer 10^-4 Lsun
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ASTR 102 Final Exam Questions Riverside Correct Solutions Current Update
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ASTR 102 Final Exam Questions Riverside Correct Solutions Current Update 
 
order of red giant's life - Answer -Red Giant → Planetary Nebula → White Dwarf → Black Dwarf 
or 
Red Giant → Type II Supernova → Neutron Star 
or 
Red Giant → Type II Supernova → Black Hol 
 
The eventual fate of our Sun is to - Answer -become a steadily cooling white dwarf. 
 
Our Sun will not become a nova because this only happens to stars - Answer -with a binary companion. 
 
Black holes are formed ...
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Which of the following statements about light focusing is not true? 
A) In a healthy eye, light is focused on the retina. 
B) Film should be placed at the focal plane in a camera. 
C) If you try to look at an image that is not formed at the focal plane, it will be blurry. 
D) The focal plane of a reflecting telescope is always located within a few inches of the 
primary mirror. - Answer D) The focal plane of a reflecting telescope is always located 
within a few inches of the primary mirror
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ASTR 102 Midterm Exam Questions | 100% Correct Answers | Verified | Latest 2024 Version
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ASTR 102 Midterm Exam Questions | 
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The apparent motion of a foreground object relative to a distant background as the observers position 
changes? - Parallax 
 
When measuring parallax the distance between two observation points is called? - Baseline 
 
If Earth rotated twice as fast as it currently does, but its motion around the Sun stayed the same, then? 
A. The night would be twice as long 
B. The night would be half as long 
C. The...
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ASTR 102 Midterm Exam Questions | 100% Correct Answers | Verified | Latest 2024 Version
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The apparent motion of a foreground object relative to a distant background as the observers position 
changes? - Parallax 
When measuring parallax the distance between two observation points is called? - Baseline 
If Earth rotated twice as fast as it currently does, but its motion around the Sun stayed the same, then? 
A. The night would be twice as long 
B. The night would be half as long 
C. The year would be half as long 
D. The length of the day would be unchanged. - B. 
A long, thin cloud ...
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The celestial sphere - An imaginary sphere surrounding Earth to which the stars are attached. 
Ancient astronomers believed the sky was a great sphere surrounding Earth with the stars stuck on 
the inside like thumbtacks. Modern astronomers know that the stars are scattered through space at 
different distances, but it is still convenient to think of the sky as a great starry sphere enclosing Earth. 
celestial sphere - the eastward rotation of Earth causes the Sun, Moon, planets, and stars to 
m...
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What is the period of the solar magnetic cycle? 
a)27 days 
b)1 year 
c)11 years 
d)22 years 
e)220 years - 2: What is the period of the solar magnetic cycle? 
a)27 days 
b)1 year
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