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Stars
More Stars
Galaxies
H-R Diagram
Big Bang Theory
100
What color are the hottest stars?
Blue
100
A small, hot, dim star that is the leftover center of an old star
white dwarf
100
Name 3 types of galaxies?
Spiral, elliptical, irregual
100
How have astronomers determined what type of galaxy the Milky Way is?
By studying other distance galaxies and comparing them to the Milky Way.
100
Light travels in one year over a distance called?
light-year
200
A gigantic explosion that is the death of a large star
Supernova
200
What is the final stage in a star's life?
White dwarf
200
What type of galaxy is our Milky Way?
Spiral Galaxy
200
Which of the following would indicate the brightest star? -2, 0, -0.2, +5
-2
200
A star that expands and cools once it runs out of hydrogen
Red Giant
300
The color of a star depends on it's what?
Temperature
300
A star in which the electrons and protons have become neutrons
neutron star
300
Why do astronomers study distant galaxies?
To learn what early galaxies looked like
300
The H-R diagram shows the relationship of a star's temperature and
Absolute Magnitude
300
A massive and dense object from which even light cannot escape its gravity
black hole
400
What is the first stage of a star's life?
Main-sequence
400
What is the second stage of a star's life?
Red Giant
400
Where are globular clusters found?
in the spherical halo of spiral galaxies and near elliptical galaxies.
400
How bright a star is at 32.6 light-years from Earth is a star's
Absolute magnitude
400
What is cosmology?
the study of the universe's origin, structure, and future.
500
A spinning neutron star that emits rapid pulses of energy
pulsar
500
A star may seem to move in place because of
parallax
500
Where are open clusters found?
Along the spiral disks of galaxies.
500
How bright a star seems to be from Earth is a star's
Apparent Magnitude
500
According to the big bang theory, the universe is about how old?
13.7 billion years old