星周包层是恒星的一部分,具有大致球形的形状,但不会受到重力吸引到恒星的核心。通常星周包层形成于稠密的恒星风或出现在恒星形成之前。老年恒星的星周包层[1]最终将会演变成原行星云,而初期恒星体的星周包尘[2]会发展成为星周盘

星周包尘的类型

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参考资料

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