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发帖数: 1994 | 1 Henize 3-401: An Elongated Planetary Nebula
Explanation: How do dying stars eject their outer layers? Stars that create elegant planetary
nebulas like Henize 3-401, pictured above, are not unusual, causing speculation that, one day,
our own Sun may look like this. Henize 3-401 is one of the most elongated planetary nebulas
yet discovered, a particularly odd feat for a seemingly round star. Perhaps, some astronomers
hypothesize, the elongated shape gives a clue to the expulsion mechanism. Genesis |
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