IC 1396中一个不寻常的小球体
(原标题: An Unusual Globule in IC 1396)
2022-12-12
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IC 1396里有怪物吗？有些人称之为象鼻星云，这个恒星形成区域的部分气体和尘埃云可能会呈现出不祥的形态，有些甚至接近人类。然而，这里唯一真正的怪物是一颗明亮的年轻恒星，它离地球太远，不会伤害我们。这颗恒星发出的高能光正在吞噬图片顶部附近的黑暗彗星球的尘埃。从这颗恒星发射出的喷流和粒子风也在推开周围的气体和尘埃。距离我们近3000光年，相对暗淡的IC 1396复合体在天空中覆盖的区域比这里显示的要大得多，其视宽度超过10个满月。
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Is there a monster in IC 1396? Known to some as the Elephant's Trunk Nebula, parts of gas and dust clouds of this star formation region may appear to take on foreboding forms, some nearly human. The only real monster here, however, is a bright young star too far from Earth to hurt us. Energetic light from this star is eating away the dust of the dark cometary globule near the top of the featured image. Jets and winds of particles emitted from this star are also pushing away ambient gas and dust. Nearly 3,000 light-years distant, the relatively faint IC 1396 complex covers a much larger region on the sky than shown here, with an apparent width of more than 10 full moons.
© Bernard Miller