The a color a star would appear to be from Earth if it had an extremely hot surface temperature.
What is bluish/white.
100
A low/medium mass star will become this type of star when it begins to run out of fuel.
What is a red giant.
100
All stars begin first as part of a _____________, or cloud of gas and dust.
What is a nebula.
100
What determines the life cycle a star will go through?
What is the star's mass.
200
The color of a star with a cooler surface temperature.
What is red.
200
What does a light-year measure?
What is distance.
200
The type of star our Sun is currently.
What is a main sequence star.
200
The type of stars that undergo supernovas.
What is a high mass star.
200
The ________ the paralax shift, the _________ the star.
What is greater, closer.
300
The brightness a star would have a standard distance from Earth.
What is absolute brightness.
300
Describe our Sun in terms of size, color, temperature, and brightness.
What is it is a yellow, medium sized star, with medium surface temperature (5,700 degrees Celsius) and medium brightness. An average star!
300
The type of star a high mass star becomes when it begins to run out of fuel but before it explodes.
What is a supergiant star.
300
True of False: The Sun will someday supernova.
Explain why or why not.
What is false, because the Sun does not have enough mass to supernova.
300
Describe the surface temperature of the star Betelgeuse in the constellation of Orion the Hunter.
What is red; therefore, cool surface temperature.
400
A device that breaks light into colors and produces an image of the resulting sprectrum.
What is a spectrograph.
400
Star A and Star B have the same absolute brightness. Star A is 125 light-years from Earth, and Star B is 32 light-years from Earth. Which star has the greater apparant brightness?
What is Star B (the closer star).
400
The remains of high mass star (often spin rapidly and emit radio waves).
What is a neutron star/pulsar.
400
White dwarfs are the size of __________, but have the mass of _________.
What is Earth, Sun.
400
The fusion of which two elements forms iron in the core of star.
What is carbon and oxygen.
500
Explain how paralax is used to measure the distance to a star.
What is a star is viewed from two different positions in Earth's orbit, and the paralx shift is observed. The greater the paralax shift, the closer the star.
500
What two variables does the Hertzsprung-Russel Diagram graph?
What is absolute brightness and surface temperature.
500
The core of star left behind after a planetary nebula dissipates into space.
What is a white dwarf.
500
Explain the entire life cycle of a low/medium mass star like out Sun. (From pre-birth to death)
What is the gravity attracts gas and dust in a nebula into a protostar. When the protostar becomes hot and dense enough for a nuclear fusion to occur then a star is born. The star will burn until there is no longer any hydogen. The star becomes unstable.....gravity takes over and the core begins to collapse while the outer layers of the star are pushed further outward (Red Giant phase). Eventually the outer gases drift further into space forming a planetary nebula. The white-hot core left behind is a white dwarf. When the white dwarf cools, it will stop glowing and will be a black dwarf.
500
The type of supernova that formed most of the iron in the Universe.
What is type 1a or double star supernova. A whote dwarf containing carbon and oxygen "steals" energy from its companion star.....the creation of iron signals the death of the star and triggers a type 1a supernova.