13 p / Olbers彗星
(原标题: Comet 13P/Olbers)
2024-06-28
浏览次数: 14
这不是一个悖论，13P/奥尔伯斯彗星在68年后重返太阳系内部。这颗周期性的哈雷彗星将在6月30日到达它的下一个近日点，也就是最接近太阳的地方，它已经成为地球北半球夜空中低空双筒望远镜观测的目标。但这张清晰的13P望远镜图像是由6月25日晚上拍摄的堆叠曝光组成的。它很容易揭示出明亮的彗星被活跃太阳吹来的风吹得支离破碎的离子尾巴的变化细节，以及宽阔的扇形尘埃尾巴和微绿的昏迷。这幅画框横跨山猫星座暗淡恒星的背景，跨度超过2度。
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Not a paradox, Comet 13P/Olbers is returning to the inner Solar System after 68 years. The periodic, Halley-type comet will reach its next perihelion or closest approach to the Sun on June 30 and has become a target for binocular viewing low in planet Earth's northern hemisphere night skies. But this sharp telescopic image of 13P is composed of stacked exposures made on the night of June 25. It easily reveals shifting details in the bright comet's torn and tattered ion tail buffeted by the wind from an active Sun, along with a broad, fanned-out dust tail and slightly greenish coma. The frame spans over two degrees across a background of faint stars toward the constellation Lynx.
© Dan Bartlett