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School
Broward College *
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Course
1022
Subject
Astronomy
Date
Jun 24, 2024
Type
Pages
2
Uploaded by BaronCrownCoyote41
Quiz Unit #4 - AST1102
Study online at https://quizlet.com/_8u8un7
1.
How long does it take for light to travel from the surface of the sun to Earth?
8 minutes and 23 seconds
2.
How far across, in diameter, is our galaxy the Milky Way?
100.000 ly
3.
The Milky Way is classified as a ____
Barred Galaxy
4.
The longer the pulsation of a Cepheid the further the star is away from Earth
True
5.
What is the closest galaxy to the Milky Way?
Andromeda
6.
The further the star the smaller the angle of parallax
True
7.
What is the percentage of stars on the main sequence after the birth of a star cluster
90%
8.
Which statement is correct when using stel-
lar parallax to find distance to near star
Distance to a star is inverse-
ly proportional to parallax
9.
What happens to a star when it first leaves the main sequence on the Hertzsprung Rus-
sell diagram
Becomes a red giant
10.
Stellar Parallax
1 / 2
Quiz Unit #4 - AST1102
Study online at https://quizlet.com/_8u8un7
What method do we use to determine dis-
tances to stars less than 30 ly away?
11.
For stars further than 30 ly away, and less than 100 ly, the following is used
Cepheid's
12.
For stars further than 100 ly away____ is used
Supernova
13.
How are black holes formed?
From a star born at near 30 times the mass of the Sun
14.
Hubble contributed to astronomy by showing
all galaxies are moving away from us
15.
What did the scientist Hubble do for astrono-
my
Classification scheme of galaxies
16.
Using stellar parallax, a star's position in the sky is measured ____ months apart
6
17.
What is the fate of our Sun?
White dwarf and planetary nebula
18.
Why will our Sun become a Red Giant star in 5 billion years
Stars to run out of Hydrogen at the core
19.
A star born large lives longer than a star born small
False
20.
There is a super massive black hole at the center of all galaxies
True
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