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Stellar Physics and Evolution. Gravitation Pressure. Gravitation Pressure. Gravitation Pressure. Fusion Core. 4H 4 He + hf. Gravitation Pressure. Fusion Core. Gravitation Pressure. Fusion Core. Hydrostatic Equil Gravitation = radiation. Main Sequence Star Hydrogen fusion.
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Gravitation Pressure Fusion Core 4H 4He + hf
Gravitation Pressure Fusion Core
Gravitation Pressure Fusion Core Hydrostatic Equil Gravitation = radiation Main Sequence Star Hydrogen fusion
Hydrogen Gone
Core Contracts
Helium fusion Begins
Envelope expands to Red Giant