Comet C/ 2025 F 2 SWAN
Comet C/2025 F2 SWAN

來源:Dan Bartlett|發表日期:2025-04-18
3 月下旬,公民科學家弗拉迪米爾-貝祖格利(Vladimir Bezugly)、邁克爾-馬蒂亞佐(Michael Mattiazzo)和羅布-馬特森(Rob Matson)在研究盯著太陽的SOHO 太空飛行器上的太陽風各向異性(SWAN)照相機提供的公開影像資料時,獨立發現了現在被命名為C/ 2025 F 2 SWAN 的彗星。在這幅望遠鏡影像的左下方是 SWAN 彗星的彗尾,其綠色是二原子碳分子在陽光下發出熒光的標誌。SWAN 彗星微弱的離子尾巴向視場右上方延伸了近兩度。星際景象是 4 月 14 日在加利福尼亞州六月湖晴朗但有月光的天空中拍攝的。從仙女座方向的恆星背景中可以看到,這顆彗星當時距離我們的地球約 10 光分。現在,這顆天鵝座彗星已經成為北半球晨空中雙筒望遠鏡和小型望遠鏡的目標,它將於 5 月 1 日迎來近日點,也就是最接近太陽的時刻。屆時,這顆來自遙遠的奧爾特雲的訪客將與內行星水星的軌道一樣接近太陽。
原文:In late March, the comet now designated C/2025 F2 SWAN was found independently by citizen scientists Vladimir Bezugly, Michael Mattiazzo, and Rob Matson while examining publicly available image data from the Solar Wind ANisotropies (SWAN) camera on the sun-staring SOHO spacecraft. Comet SWAN's coma, its greenish color a signature of diatomic carbon molecules fluorescing in sunlight, is at lower left in this telescopic image. SWAN's faint ion tail extends nearly two degrees toward the upper right across the field of view. The interplanetary scene was captured in clear but moonlit skies from June Lake, California on April 14. Seen against background of stars toward the constellation Andromeda, the comet was then some 10 light-minutes from our fair planet. Now a target for binoculars and small telescopes in northern hemisphere morning skies this comet SWAN is headed for a perihelion, its closest approach to the Sun, on May 1. That will bring this visitor from the distant Oort cloud almost as close to the Sun as the orbit of inner planet Mercury.
※ 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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