Galaxies that have spiral arms that wind outward from the center
What are spiral galaxies?
100
The lowest layer of the sun.
What is the Photosphere?
100
A stars first step in life and a huge cloud of dust and gas.
What is a nebula?
200
The distance that light travels in one year.
What is a light year?
200
The star's colors according to their temperature.
What is red, yellow, blue?
200
Galaxies that have many different shapes and sizes
What are irregular galaxies?
200
The Sun isn't close to any other stars.
How is the sun different from other stars?
200
Bright but not hot and usually red in color.
What is a giant?
300
Absolute Magnitude.
What is the measure of the amt. of light stars give off?
300
A galaxy.
A large group of stars and gas held together by gravity is...
300
Shaped like large, three-dimensional ellipses
What are elliptical galaxies?
300
Spots on the sun that are dark because they are cooler.
What are sunspots?
300
High mass star and low mass star.
What are the two species of stars that form from a nebula.
400
The amt. of light received on on Earth from a star?
What is apparent magnitude?
400
Used to measure how far a star is from Earth.
What is parallax?
400
Spiral Galaxy
What type of galaxy is the Milky Way Galaxy?
400
Huge arching columns of gas.
What are prominences?
400
A diagram that shows the relationship between a stars absolute magnitude and temperature.
What is the H-R diagram?
500
Large amounts of electrically charged gas are ejected suddenly from the suns corona.
What are CME's(Coronal mass ejections)?
500
Our yellow main sequence star.
What is the Sun
500
The leading idea about how the Universe was formed.
What is the Big Bang Theory?
500
3 layers.
How many layers does the sun have?
500
A star ejects enormous amounts of matter during it's lifetime. Some of this matter is incorporated into nebulas, which can evolve to start the process again.