2. Yellow Dwarfs Color: Appear yellow
Gases Burned: Fuse H, He to generate into light
Size : Small  % mass of the sun
Surface Temperature: K
Area: Main sequence stars
Death/Next Stage: Expand into a red giant
Lifetime: Generally will last for 10 billion years

3. Our Sun is a Yellow Dwarf

4. Red Dwarf Color: Appears red Gases Burned: H used to the last drop
Size : Small  7.5% - 100% size of the sun
Surface Temperature: Cool, under 4,000K
Area: Main sequence stars
Death/Next Stage: Fade to brown stars
Lifetime: Generally will last for 10 trillion years

5. Red Dwarf

6. Red Giant Color: Appears orange
Gases Burned: 1st H, then after swell uses heavier elements
Size : 100 times bigger then original
Surface Temperature: Becomes cooler, under 6500 K
Area: Evolve from main sequence stars
Death/Next Stage: Collapse to white dwarf after fuel is gone
Lifetime: Generally will last for hundreds of billions of years

7. Red Giant

8. Blue Giant Color: Appears blue Gases Burned: He Size : Huge
Surface Temperature: Hot, 20,000 K
Area: Post main sequence stars
Death/Next Stage: Expand and cool to red giants or expand into supergiants
Lifetime: Short, tens or hundreds of million years

9. Blue Giant

10. Supergiant Color: Red or Blue Gases Burned: Carbon
Size : Largest known Suns
Surface Temperature: Red K, Blue 20, ,000
Area: Post Main Sequence
Death/Next Stage: Supernova to a black hole
Lifetime: Short, 30 million- few thousand years

11. Supergiant

12. White Dwarf Color: Appears white Gases Burned: He
Size : Small, 60% of original mass into size of the Earth
Surface Temperature: Hot, but will slowly cool down
Area: Post Red Giant
Death/Next Stage: Cold dark black dwarf
Lifetime: Long, Age of the Universe

13. White Dwarf

14. Brown Dwarf Color: Can’t visibly see Gases Burned: No gases
Size : small, .07 solar masses
Surface Temperature: Cool
Area: Unknown
Death/Next Stage: Unknown
Lifetime: Unknown

15. Brown Dwarf

16. Neutron Star Color: Appears white
Gases Burned: Stellar remnant, neutrons, small amount of H
Size : Small, 5-10 miles
Surface Temperature: Extremely hot, 1 million degrees but surface cools
Area: Post stars
Death/Next Stage: Dissolves, slowly stops spinning
Lifetime: 10 billion years

17. Neutron Stars

18. Star Type
Luminosity
Yellow Dwarf
1 solar unit (as bright as the sun)
Red Dwarf
10-3 solar units (.01)
Red/Blue Giants
102 solar units (100)
Red/Blue Supergiants
105 solar units (10,000)
Neutron Star
10-2 solar units (.1)
White Dwarf
Brown Dwarf
Below 10-5 solar units (.0001)