The Rest of the Universe. Stars and Galaxies. Stars. constellations- an imaginary picture made by groups of stars; example: The Big Dipper The color of the star indicates the temperature. Blue is the hottest, red is the coolest.
Stars and Galaxies
1. Birth- created from cloud of gas and dust
2. Adulthood- uses hydrogen and helium for nuclear fusion fuel
3. Old age- enlarges into a red giant or supergiant
4. Explodes in a supernova!
4. Uses up its fuel and becomes a dwarf star
(white, then brown then black when doesn’t give off any more light)
5. Neutron star
(2-3 times mass of our sun)
5. Black hole
(>7 times mass of our sun)