Determines the life cycle of a star
What is mass?
X axis of HR diagram
What is temperature?
Definition of galaxy
What is group of stars, dust and gas?
Theory's prediction for future
What is continue to expand?
What is sound and light?
The start of the star life cycle
What is a nebula?
Most stars are in this stage
What is main sequence?
Type of galaxy the Milky Way is
What is spiral?
Indicates all galaxies are moving outward
What is red shift?
Pitch heard when object approaches
What is high pitch?
End of the low mass cycle
What is a black dwarf?
Location on the graph for the brightest stars
What is the top?
Galaxy with mostly older stars
What is elliptical?
Prediction for the origin of the universe
What is explosion from single point?
Wavelength observed when object moves away
What is long wavelength?
Explosion of high mass star
What is a supernova?
Location of red stars
What is the right side?
Location of solar system in galaxy
What is the arm?
Radiation evidence for big bang
What is cosmic microwave background radiation?
Light observed from object moving away
What is red shift?
Dust and gas loosely held around a hot, dim, low mass core
What is a planetary nebula?
Number of stages on HR diagram
What is 4?
Rare galaxy with no pattern
What is irregular?
Estimated beginning of universe
What is 13.7 billion years ago?
Pitch observed when object does not move
What is unchanged pitch?