The property of stars that scientists use to determine the temperature of a star.
What is color?
100
Nebula, then protostar, main sequence, giant, and then finally white dwarf
What are the stages of a low mass star?
100
He discovered galaxies.
Who was Edwin Hubble?
100
An example of irregular galaxies
What are Large and Small Magellanic Clouds?
100
Two main features of the universe.
What are star systems and galaxies?
200
The method used to measure the distance of stars close to Earth by viewing the star from Earth's location at one time during the year and then six months later.
What is parallax?
200
This stage occurs when the core of a star has fused all of its hydrogen into helium.
What is a giant?
200
Edwin Hubble notice this about objects in space
What is they were rushing away from each other?
200
Andromeda
What is an example of a spiral galaxy?
200
This is used to determine the motion of stars and galaxies.
What is the Doppler effect?
300
The most common elements in which stars are composed of.
What are hydrogen and helium?
300
The one factor that determines the outcome of a star's life cycle.
What is starting mass?
300
A black hole is found in the center.
What is located in the center of massive galaxies?
300
This is the type of star system and galaxy in which our star belongs.
What is a single star system and a spiral galaxy?
300
13.7 billion years.
What is the age of the universe?
400
This is determined by the size and temperature of a star.
What is absolute magnitude?
400
The joining of two nuclei of hydrogen atoms to form helium with extreme amounts of energy being released.
What is nuclear fusion?
400
This happens as objects move towards us
What is light and sound waves are compressed?
400
This is the amount of stars a galaxy can hold.
What are billions and billions of stars?
400
An explanation that states all matter and energy exploded from one point and has been expanding apart ever since.
What is the big bang theory?
500
The unit used to measure the distance between stars.
What is a light year?
500
This shows the relationship between a star's color, brightness and temperature
What is the H-R diagram?
500
The balance between a star's nuclear fusion and gravity
What is thermodynamic equilibrium?
500
The shift that shows the compaction, or shortening, of wavelengths by the spectroscope.
What is blue shift?
500
Evidence that supports the big bang theory.
What is the red shift of all stars and galaxies in our universe?