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The Long Life of Stars
Stars and Stellar Models
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angular momentum astronomers astrophysicists atomic nuclei become binary system bright calculations carbon central region cloud collapse companion convection core Crab nebula Crab pulsar cycle Delta Cephei Delta Cephei stars density depletion disk distance earth electrons elements emitted evolution figure galaxy gas pressure gram gravitational force gravity H-R diagram helium Henyey Hercules hydrogen fusion initial sun interior interstellar gas less massive light look luminosity luminous magnetic field main sequence main-sequence star mass number massive stars Milky million degrees move neutrinos neutron star nuclear energy nuclear reactions nucleus Observatory observed orbital original outer layers particles piston planets proton-proton chain protons pulses radiation radius rays red giants revolve rotating signals Sirius solar masses space spiral arms star clusters star's stellar evolution stellar matter stellar models sun's supernova supernova explosion surface temperature telescope tion Uhuru velocity visible white dwarf X-ray emission X-ray source X-ray stars Zeta Aurigae