海尔-波普：1997年的大彗星
(原标题: Hale-Bopp: The Great Comet of 1997)
2022-04-08
浏览次数: 25
就在25年前，海尔-波普彗星绕太阳运行，在地球的夜空中形成了令人眼花缭乱的奇观。这张经典的1997年大彗星的照片是在1997年4月1日大彗星经过近日点几天后拍摄的。这张10分钟长的手动曝光照片是用一台照相机和一个小望远镜上的长焦镜头拍摄的，照片上有令人难忘的海尔-波普星尾巴，一条白色的尘埃尾巴，一条蓝色的离子尾巴。在这里，离子尾巴在北方的天空中延伸了十多度。总之，从1996年5月下旬到1997年9月，海尔波普被报道为肉眼可见。海尔-波普彗星也被称为C/1995 O1，被认为是经过内太阳系的彗星中成分最原始的彗星之一。这颗彗星来自遥远的奥尔特云，下一次经过近日点应该是在公元4380年左右。你还记得海尔-波普吗？
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Only twenty-five years ago, Comet Hale-Bopp rounded the Sun and offered a dazzling spectacle in planet Earth's night skies. Digitized from the original astrophoto on 35mm color slide film, this classic image of the Great Comet of 1997 was recorded a few days after its perihelion passage on April 1, 1997. Made with a camera and telephoto lens piggy-backed on a small telescope, the 10 minute long, hand-guided exposure features the memorable tails of Hale-Bopp, a whitish dust tail and blue ion tail. Here, the ion tail extends well over ten degrees across the northern sky. In all, Hale-Bopp was reported as visible to the naked eye from late May 1996 through September 1997. Also known as C/1995 O1, Hale-Bopp is recognized as one of the most compositionally pristine comets to pass through the inner Solar System. A visitor from the distant Oort cloud, the comet's next perihelion passage should be around the year 4380 AD. Do you remember Hale-Bopp?
© Stefan Seip