木星北極的氣旋
Cyclones at Jupiter's North Pole
發表日期：2025-03-09
為什麼木星北極周圍有這麼多氣旋？這個問題仍在研究之中。 美國國家航空航天局（NASA）圍繞木星執行的 "朱諾 "號機器人任務於 2018 年採集了資料，並利用這些資料繪製了木星北極奇異氣旋的迷人景象。透過測量木星雲頂的熱輻射，紅外觀測並不侷限於陽光照射的半球。它們揭示了八個氣旋特徵，這些特徵圍繞著一個直徑約 4000 公里的氣旋，正好偏離這顆巨行星的地理北極。類似的資料顯示，在木衛二南極有一個氣旋和五個環極氣旋。南極氣旋略大於北極氣旋。奇怪的是，曾經在土星軌道上執行的卡西尼號任務提供的資料顯示，土星的南北兩極各有一個氣旋風暴系統。
原文：Why are there so many cyclones around the north pole of Jupiter? The topic is still being researched. NASA's robotic Juno mission orbiting Jupiter took data in 2018 that was used to construct this stunning view of the curious cyclones at Jupiter's north pole. Measuring the thermal emission from Jovian cloud tops, the infrared observations are not restricted to the hemisphere illuminated by sunlight. They reveal eight cyclonic features that surround a cyclone about 4,000 kilometers in diameter, just offset from the giant planet's geographic north pole. Similar data show a cyclone at the Jovian south pole with five circumpolar cyclones. The south pole cyclones are slightly larger than their northern cousins. Oddly, data from the once Saturn-orbiting Cassini mission has shown that Saturn's north and south poles each have only a single cyclonic storm system.
※ 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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