Mass1.0 M☉
Our Sun ☀
Surface Temp 5,778 KMain-seq. lifetime ~10.0 billion yrs
NebulaNebula

Stars are born in nebulae — enormous clouds of gas and dust. Gravity pulls the gas inward, and over millions of years, the contraction begins.

  • Composed mainly of hydrogen (75%) and helium (24%)
  • Slowly contracts and heats over millions of years
  • Our Sun was born through this process 4.6 billion years ago

Stars are born in nebulae — enormous clouds of gas and dust. Gravity pulls the gas inward, and over millions of years, the contraction begins.

  • Composed mainly of hydrogen (75%) and helium (24%)
  • Slowly contracts and heats over millions of years
  • Our Sun was born through this process 4.6 billion years ago
Nebula
Protostar
Main Sequence
Red Giant
Planetary Nebula
White Dwarf