Population of Stars

• The Sun isn’t special!

• Nearest star is ~ 4 ly away

• Temperatures: 2,000-30,000K (sun 5800)

• Luminosities: 1/100,000 to > 1,000,000 x sun

• Fall into “classes” on the H-R diagram

  • Main sequence (sun), white dwarfs, red giants, supergiants

Notes: