Mute
André Luiz Moraes
A estrutura da Nebulosa do Ovo é o que a torna tão fascinante e complexa. A imagem do Hubble revela uma série de arcos concêntricos, quase como as ondulações na superfície de um lago. Essas cascas de material, que se expandem para longe da estrela, são um registro fóssil das pulsações da estrela durante sua fase final de AGB. Elas nos dizem que a estrela não ejetou sua massa de uma só vez, mas em uma série de eventos periódicos, talvez a cada poucas centenas de anos.
Follow
13
0
5
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