Stars
The Sun
Evelution of Stars
Galexies and The Universe
100
88
What is the amount of constellations modern astronemers divide the sky into?
100
Photosphere
What is the layer of the suns atmosphere in which light is given off???
100
(H-R) Diagrahm
What is the graph that shows the relationship between stars temp and it's Absolute Magnitude???
100
Galaxy
What is a group of stars,Gas held together
200
It is closer to the earth than any other star
What makes the Sun different from other stars???
200
90
About what percent of stars are main sequence stars??
200
1 trillion
How many stars can the Milky way contain??
300
Absolute- The amount of light a star gives off Apparent- The amount of light a star apears to give off
Define Absolute Magnitude and Apparent Magnitude???
300
Areas of the suns surface that appear dark because they are cooler then surrounding areas
What is a Sunspot?????
300
a large cloud of gas stars begin as
What is a nebula???
300
The Big Bang Theory
What is the theory about the formation of the Universe???
400
A lightyear
What is the distance that light travels in 1 year
400
Aroras
What is 1 damage of a CME??
400
After the stars core uses too much of it's Helium
When does a star become a White Dwarf???
400
clusters
Galexies are grouped into what????
500
It's Temp
The color of a star Indicates what???
500
Middle aged
How old is the sun????
500
Hydrogen
What do you need to Generate Fusion???
500
spiral Galaxies
What is Galaxies that have spiral arms???
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