日全食和彗星
(原标题: Total Eclipse and Comets)
2024-04-17
浏览次数: 10
不是一颗，而是两颗彗星在上周的日全食期间出现在太阳附近。预期的彗星是12P/庞斯-布鲁克斯彗星，但令人失望的是，它比许多人希望的要暗。然而，相对未知的彗星SOHO-5008也出现在长时间的相机曝光中。这颗彗星是欧洲航天局和美国宇航局绕太阳运行的SOHO宇宙飞船拍摄的第5008颗彗星。SOHO-5008彗星可能要小得多，它是一颗掠日彗星，在距离太阳太近的几个小时内就解体了。这张特色图片不仅是在日食期间捕捉到两颗彗星的不寻常之处，而且是从地球表面拍摄到掠日彗星的罕见照片之一。在图像中还可以看到我们的太阳和行星水星（左）和金星（右）蔓延的日冕。在这些行星和彗星中，只有金星在4月8日穿过北美的月球的阴影中很容易被数百万人看到。日食图像：提交给APOD的重要作品
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Not one, but two comets appeared near the Sun during last week's total solar eclipse. The expected comet was Comet 12P/Pons-Brooks, but it was disappointingly dimmer than many had hoped. However, relatively unknown Comet SOHO-5008 also appeared in long duration camera exposures. This comet was the 5008th comet identified on images taken by ESA & NASA's Sun-orbiting SOHO spacecraft. Likely much smaller, Comet SOHO-5008 was a sungrazer which disintegrated within hours as it passed too near the Sun. The featured image is not only unusual for capturing two comets during an eclipse, but one of the rare times that a sungrazing comet has been photographed from the Earth's surface. Also visible in the image is the sprawling corona of our Sun and the planets Mercury (left) and Venus (right). Of these planets and comets, only Venus was easily visible to millions of people in the dark shadow of the Moon that crossed North America on April 8. Solar Eclipse Imagery: Notable Submissions to APOD
© Lin Zixuan (Tsinghua U.)