URL:https://www.pmfias.com/wp-content/uploads/2023/05/Star-Formation-Stellar-Evolution-or-Life-Cycle-of-a-Star-Nebula-Protostar-Red-Giant-Planetary-Nebula-Supernova-White-Dwarf-Neutron-Star-Black-Hole.png
掲載元:https://chimniii.com/news/Science/Science-Astronomy-Astronomers-Witness-the-Full-Cycle-of-Stellar-Evolution.html