Evolution of Solar Mass Stars

We trace the Sun's Phases of Life and detail what we know about Stellar Evolution. We watch the Sun as it finishes its Main Sequence life, becoming a Red Giant. At the end of this cycle, it will make a Planetary Nebula, and finish with a Degenerate Matter White Dwarf. I also talk about tiny stars: the Red Dwarfs. The Sun will live and die. What is the Sun's fate and the fate of stars with lower mass than the Sun? The Sun's Phases of Life: https://en.wikipedia.org/wiki/Sun#Lif... Stellar Evolution: https://en.wikipedia.org/wiki/Stellar... Red Giant: https://en.wikipedia.org/wiki/Red_giant White Dwarf: https://en.wikipedia.org/wiki/White_d... Degenerate matter: https://en.wikipedia.org/wiki/Degener... Planetary Nebula: https://en.wikipedia.org/wiki/Planeta... Many Planetary Nebulae: https://en.wikipedia.org/wiki/List_of... Asymptotic giant branch: https://en.wikipedia.org/wiki/Asympto... Red Dwarf: https://en.wikipedia.org/wiki/Red_dwarf 0:00 Introduction 1:08 Life Cycles of Stars 3:52 The Evolutionary Cycle of the Sun 5:42 Leaving the Main Sequence 7:10 How will the Sun Evolve? 8:08 Before the Sun was a star... 9:54 The Sun Today 11:38 Evolution of a Sun-like Star 14:54 Hydrogen shell burning 15:12 Hydrogen core exhaustion 17:23 Climbing the Red Giant Branch 21:01 The Helium Flash 21:54 The Triple-Alpha Process 24:14 Horizontal Branch Phase: Helium Fusion 25:23 The Horizontal Branch 26:06 Now the Helium begins to run out... 27:31 Helium core exhaustion 28:41 Asymptotic Giant Branch Phase 30:53 Core-Envelope Separation 32:00 Asymptotie Giant Branch Phase Mass Loss 32:36 Old Age Brings Unsteadiness 33:22 A Nebula Arises 34:33 Planetary Nebula Phase 35:32 White Dwarf 39:33 The Final State 43:04 Small-Mass-Star Hydrogen Core burning