A Via Láctea, a nossa galáxia
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https://doi.org/10.47456/Cad.Astro.v5n1.43824Palavras-chave:
Via Láctea, Estrutura da galáxia, dinâmica da galáxiaResumo
Apresentamos a Via Láctea, nossa Galáxia, primeiro com uma introdução de como a vemos no céu, e a seguir com a história dos primeiros passos de descobertas, que levaram a conclusão de que a Galáxia não é o próprio Universo, mas apenas uma entre muitas galáxias.
Descrevemos seus componentes principais (disco galáctico, braços espirais, bojo, barra), mencionando suas dimensões e formas geométricas. Focalizamos as órbitas das estrelas, responsáveis pela manutenção da forma dos componentes. Explicamos as órbitas, a partir das forças gravitacionais que atuam sobre as estrelas
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Copyright (c) 2024 Jacques Lépine
Este trabalho está licenciado sob uma licença Creative Commons Attribution 4.0 International License.
