G 3 ATLAS 彗星解體
Comet G3 ATLAS Disintegrates
發表日期：2025-02-02
G 3 ATLAS 彗星發生了什麼？在 1 月中旬經過太陽附近後，這顆彗星的頭部變得越來越暗淡。到 1 月下旬，C/ 2024 G 3 (ATLAS) 彗星已經變成了一顆無頭彗星--儘管它在日落後繼續在地球南半球的天空中顯示出令人印象深刻的尾巴。圖為 G 3 ATLAS 彗星在 1 月連續幾個夜晚從智利 Río Hurtado 拍攝的影像。很明顯，彗星的頭部在較早的幾天（左圖）比在較晚的幾天（右圖）更明亮，也更集中。 一個重要原因可能是彗星頭部中心的冰核和岩石已經碎裂。G 3 ATLAS 彗星在離太陽最近的時候穿過水星軌道，這個距離上的熱量摧毀了許多彗星。 G 3 ATLAS 彗星的一些散射殘骸將繼續圍繞太陽執行。 相簿：G 3 ATLAS 彗星
原文：What's happening to Comet G3 ATLAS? After passing near the Sun in mid-January, the head of the comet has become dimmer and dimmer. By late January, Comet C/2024 G3 (ATLAS) had become a headless wonder -- even though it continued to show impressive tails after sunset in the skies of Earth's Southern Hemisphere. Pictured are images of Comet G3 ATLAS on successive January nights taken from Río Hurtado, Chile. Clearly, the comet's head is brighter and more centrally condensed on the earlier days (left) than on later days (right). A key reason is likely that the comet's nucleus of ice and rock, at the head's center, has fragmented. Comet G3 ATLAS passed well inside the orbit of planet Mercury when at its solar closest, a distance that where heat destroys many comets. Some of comet G3 ATLAS' scattering remains will continue to orbit the Sun. Gallery: Comet G3 ATLAS
※ 本文由萌芽機器人自動轉貼自每日一天文圖（Astronomy Picture of the Day，APOD），原文為英文，正體中文是透過 DeepL 翻譯及 OpenCC 進行自動處理，內容僅供參考，若有任何錯誤之處還請見諒！
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