Star Characteristics
Lives of Stars
H-R Diagram
Star Comparisons
Vocabulary
100
This is the name of the galaxy we live in:
Milky Way
100
After a medium size star reaches red giant stage, what stage comes next?
White dwarf
100
Which would have a higher surface temperature: a star on the left side of the graph or a star on the right side of the graph?
Left
100
Which group on the H-R diagram is the sun in?
Main Sequence
100
A giant, flat structure that contains hundreds of billions of stars
Galaxy
200
This diagonal line on a H-R diagram contains 90% of all stars
Main Sequence
200
What process must begin for a star to be “born”?
nuclear fusion
200
Which would have a higher brightness: a star near the top of the diagram or a star near the bottom of the diagram?
Near the top
200
Which supergiant listed has the lowest surface temperature?
Betelgeuse
200
All of space and everything in it
Universe
300
Which color star has a hotter temperature: a yellow star or a red star?
Yellow star
300
Why do smaller stars live longer than larger ones?
They burn through their fuel more slowly
300
This color star has the lowest temperature on a H-R diagram.
Red
300
Which star is brighter: Polaris or Aldebaran?
Polaris
300
A large amount of gas or dust spread out in an immense volume
Nebula
400
How could a star have a high absolute magnitude while having a low apparent magnitude?
The star is very far from Earth
400
Name one way that astronomers can detect black holes.
They look for the black hole's effect on nearby stars.
400
Which type of star would be found near the top of an H-R diagram: a supergiant or a white dwarf?
Supergiant
400
Which star is cooler: Rigel or Sirius B?
Rigel
400
A type of star that gives off regular pulses of radio waves
Pulsar
500
Explain how astronomers use parallax to calculate the distance to a star.
Make 2 measurements 6 months apart and use how far the star has appeared to move to calculate distance
500
Describe the life span of a larger-than-normal star from beginning to end.
Nebula --> Protostar --> Main Sequence --> Giant/Supergiant --> Supernova --> Black Hole or Neutron Star
500
List the star colors in order from hottest to coolest.
Blue - white - yellow - orange - red
500
Arcturus and Aldebaran have a similar apparent brightness. What would you need to know in order to determine which star has the highest absolute magnitude?
How far each of them are from Earth
500
A quasar is a distant galaxy that is believed to have this at its center:
Black Hole