Red Giant http://wonderquest.com/images/2005-03-10-red-giant-star.jpg
Red Giant: A large, bright, cool star which uses helium as a fuel source.
(D,E,G) Third Contraction The supply of helium is depleted which causes the force of gravity to be greater than the energy released from the star due to fusion.
If the amount of matter in the star is average (up to 8 times the Sun’s mass),it will follow Path #1 to form a White Dwarf (5). A White Dwarf: a small,dim,hot star. A White Dwarf will eventually burn out and form a Black Dwarf (6).
White Dwarf http://www.astronomy.mps.ohio-state.edu/npogge/Ast162/unit3/extreme.html
Nova: A star that changes in brightness and has an explosion which removes some of its outer layers.
If a star is more massive than the sun ( 8 to 20 times greater ),during the 3 rd Contraction, the outer layers will violently explode and implode, throwing matter into space as well as creating a dense core. This phenomenon is called a: Supernova (F,H).
Neutron Star http://solarsystem.nasa.gov/multimedia/gallery/neutron.jpg
Neutron Star: A star that forms from a collapsed star which had 8 to 20 times the mass of our Sun.
Neutron Star – Pulsar http://stardate.org/images/gallery/neutron_star.jpg
If the star is an extremely massive star (greater than 20 Sun masses), during the 3 rd Contraction, a supernova will occur which will create a collapsed star so dense, visible light will not be able to leave its gravitational pull. This is called a --?
Black Hole (8) http://brokekid.net/img/blackhole.jpg
Black Hole: A collapsed star so dense that visible light cannot escape its gravitational pull.