History
Stars
HR
Galaxies
Grab Bag
100
First to use a telescope to show planets were physical bodies
What is Galileo
100
The star that does not appear to move because the earth's axis points toward it
What is polaris
100
Stars on the left are this color
What is blue
100
Galaxies with distorted shapes
What is irregular
100
The end of a massive blue stars life
What is supernova
200
Wrote 3 laws of planetary motion
What is Kepler
200
The actual brightness of a star based on distance from earth
What is absolute magnitude
200
Stars at the bottom are indicated with this type of number
What is positive
200
Galaxies with many young stars
What is spiral
200
The order of a typical star life cycle
What is protostar, nebula, main sequence, red giant, white dwarf
300
First to write a heliocentric theory of the universe
What is Copernicus
300
The source of energy for all stars
What is fusion
300
A red giant is located here on the HR diagram
What is top, right
300
Galaxies containing mostly old stars with no dust or gas
What is elliptical
300
The two possible results of a blue star explosion
What is neutron star or blackhole
400
Introduced a force that explained why objects would orbit the sun
What is Newton
400
Very dense, dim star with no hydrogen in the core
What is white dwarf
400
The HR diagram is named after
What is Hertzsprung and Russel
400
Indicates a galaxy is moving away
What is redshift
400
A large group of stars, dust, and gas
What is galaxy
500
Theory lasting 1000's of years that stated the earth was at the center of the universe
What is Ptolemaic theory
500
A star that emits short bursts of optical energy
What is pulsar
500
The HR diagram shows the relationship between
What is absolute magnitude and temperature
500
Supported by the movement of most galaxies away from the milky way
What is Big Bang Theory
500
A small parallax indicates what about a star
What is distant
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