彗星R 3 （PanSTARRS）變亮了
Comet R3 (PanSTARRS) Brightens
來源：José Rodrigues｜發表日期：2026-04-12
彗星R 3 正在迅速變亮——它能否存活下來？自去年被發現以來，C/ 2025 R 3 （PanSTARRS）一直緩慢變亮，並不斷延伸其離子尾。不過，由於本月它將分別經過近日點（ 4 月 19 日）和近地點（ 4 月 25 日），這顆不斷釋放塵埃冰的彗星將在本月呈現最壯觀的天空奇觀。 配圖拍攝於兩晚前，地點位於瑞士錫永，左側可見比茨霍恩山。圖中R 3 彗星的彗尾已延伸超過 10 度。 4 月中旬日出前，R 3 彗星將可見。儘管任何彗星未來的亮度都難以預測，但R 3 目前的亮度已使其成為極佳的攝影彗星，且下週可能肉眼可見。 彗星R 3 的命運同樣未可知，因為它可能像本月早些時候的彗星A 1 （MAPS）一樣，在經過近日點時解體。但也可能存活下來，最終離開太陽系。 不斷擴充的相簿： 2026 年的彗星R 3
原文：Comet R3 is brightening rapidly -- will it survive? C/2025 R3 (PanSTARRS) has been slowly brightening and extending an ion tail since its discovery last year. This shedding mountain of dirty ice puts on its best sky show this month, though, because it passes its closest to both the Sun (April 19) and the Earth (April 25). The featured image, showing R3 already sporting a tail extending over 10 degrees, was taken two nights ago from Sion, Switzerland with the big mountain Bietschhorn on the left. Comet R3 will be visible during mid-April before sunrise. Although the future brightness of any comet is hard to predict, the brightness of R3 makes it already a good camera comet and it may become visible to the unaided eye in the next week. Comet R3's physical future is also unknown because, like Comet A1 (MAPS) earlier this month, it may disintegrate when it passes its closest to the Sun. Or it may live to leave the Solar System. Growing Gallery: Comet R3 in 2026
※ 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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