Characteristics of

1
Solar Systems - Star Systems stars, planets,
moons, asteroids, comets. Types of Single,
Binary, Eclipsing Star Systems
Galaxy Elliptical Spiral (milky way) Irregular
Our solar system has 1 star! The Sun
Stars Classified by Size Temperature Brightness
Characteristics of Universe
THEORIES ABOUT THE UNIVERSE Big Bang
Theory What else Universe is expanding!
2
STARS
SIZE Medium Giant Super Giants
Brightness
Temperature
Hertzsprung - Russell Diagram X - axis Surface
Temperature Y- axis Brightness
Size determines lifespan of star Less mass -
longer life!!
3
Star Temperature
Temperature determines star color
Coolest Stars Red
Hotter Stars White
Hottest Stars Blue
Betelgeuse
Our Sun
Rigel
Orange and Yellow in between temps
4
Brightness
Apparent Magnitude
Absolute Magnitude
How bright star appears from Earth
How bright star would be if its brightness was
based on all stars measured from the same
distance.
5
Life Cycle Of Star
Protostar Nuclear Fusion H combines to form He
(energy for star formation)
1st Nebula
Small/Medium Stars
Super Giants
SUPER NOVA!!!!
Red Giant
or
Blackholes
Neutron Stars
White Dwarf
Black Dwarf