Credit: ALPO,[email=%20theo%20at%20ceastronomy%20dot%20org]Theo Ramakers[/email]
Explanation: Two months ago, something unexpected hit Jupiter.First discovered by an amateur astronomerAnthony Wesley on 2009 July 19,the impact was quickly confirmed and evenimaged by theHubble Space Telescope the very next day.Many of theworld's telescopesthen zoomed in on our Solar System'slargest planet to see the result.Some of these images have been complied into theabove animation.Over the course of the last month and a half, theabove time-lapse sequence shows the dark spot -- first created whenJupiter was struck -- deforming and dissipating asJupiter's clouds churned andJupiter rotated. It is now thought that a small comet -- perhaps less than one kilometer across --impacted Jupiter on or before 2009 July 19.Although initially expected to bevisible foronly a week, astronomers continue to track atmospheric remnants of theimpact for new information about winds and currents inJupiter's thick atmosphere.
影像提供：ALPO, Theo Ramakers
说明：
两个月前，某些事物意外地撞上了木星。由业余天文学家安东尼.韦斯利在2009年7月19日首次发现的碰撞很快被证实，甚至在一天之后被哈勃太空望远镜拍摄到。世界上的许多望远镜对焦了这颗太阳系内最大的行星。其中一部分拍摄到的影像被编辑成上面这段动画。在过去一个半月里，上面这段延时影像显示了一个黑点，这是当木星遭受撞击时造成的，在木星云层变化和木星自转下，暗点发生形变并消散。那可能是一颗小彗星，直径略小于1公里，在2009年7月19日当天或者之前撞上了木星。尽管最初形成的黑斑只能持续一周时间可见，但是天文学家们可以继续追踪碰撞所形成的大气遗迹，以寻找关于木星厚厚的大气层以及木星风的新信息。
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