When they leave the main sequence, they become a bright red supergiant, and eventually become hot enough to fuse carbon into heavier elements.
当它们离开主序时，它们会成为鲜红色的超红巨星，最终变得足够热，以至于能够将碳聚变为更重的元素。
When the red supergiant V838 Monocerotis suddenly brightened for several weeks in early 2002, it showed it was cloaked in a never-before-seen cloud structure.
当红色的超大星V838星突然明亮在2002年初几周时，它显示那是遮掩在一个在以前从未看见过的云构造。
Betelgeuse, which is part of the Orion constellation 640 light years away from Earth, is a red supergiant, meaning that it is nearing the end of its life and is due to explode.
参宿四，是距离地球640光年的猎户星座中的一颗红巨星，这意味着它的生命将会因为爆炸而即将结束。
Betelgeuse, which is part of the Orion constellation 640 light years away from Earth, is a red supergiant, meaning that it is nearing the end of its life and is due to explode.
参宿四，是距离地球640光年的猎户星座中的一颗红巨星，这意味着它的生命将会因为爆炸而即将结束。
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