Stars
Varies in luminosity and temperature. Most stars fit into this catagory.
What are main sequence stars?
This determines the color of a star.
What is temperature?
Our galaxy is this type of galaxy.
What is a spiral galaxy?
The universe is still expanding; true or false
What is mass?
Are cooler, but more luminous than the main sequence stars of the same temperature.
What are red giants?
Is it near the center?
This type of galaxy has a large central bulge that has a flat disk with spiral arms.
What is a spiral galaxy?
The Steady-State theory was proven to be the more favorable theory than the Big Bang theory; True or False.
This is what a red supergiant turns into when it explodes.
What is a supernova?
This determines the relationship between a star's surface temperature and its absolute magnitude.
What is the Hertzsprung-Russell Diagram?
These stars spend most of their time in this stage.
What is main sequence?
This type of galaxy is usually round and oval shaped.
What is an ellipical galaxy?
This theory states that the density of matter
in the ever-expanding universe will remain unchanged
overtime because matter is constantly created.
What is the Steady-State Theory?
A supernova will turn into either a black hole or a white dwarf; true or false
Is it false?
This determines the distance between Earth and the sun and other stars.
What is parallax?
This star has a high temperature but low luminosity.
THis galaxy is usually the smallest type of galaxy and has the youngest stars.
Redshift supports the Big Bang theory; true or false
Is it true?
A red giant forms when the star runs out of this element for nuclear fusion.
What is hydrogen?
This is the nearest star to Earth.
What is Proxima Centari?
This star has a high temperature and high luminosity.
What are blue giants?
This is the amount of time from when a star is the brightest to when it again reaches maximum brightness.
What are variable stars?
This person created the Big Bang theory.
Who was George Marître?
This is the number of the lifespan of stars