從帕克太陽探測器看側面
Looking Sideways from the Parker Solar Probe
發表日期：2024-02-19
太陽附近發生了什麼？ 為了找出答案，美國國家航空航天局（NASA）發射了機器人帕克太陽探測器（PSP），以調查比以往任何時候都更接近太陽的區域。帕克太陽探測器的迴圈軌道使它每隔幾個月就會靠近太陽一次。這段延時影片展示了去年PSP 第 16 次接近太陽時，從水星軌道內PSP 遮陽板後面的側面看到的景象。 PSP 的太陽探測器寬場成像儀（WISPR）相機拍攝了 11 天的影像，但在這裡它們被數字壓縮成大約一分鐘的影片。 在 PSP 圍繞太陽執行的過程中，可以看到日冕的擺動和日冕物質拋射，背景中還有恆星、行星，甚至銀河系的中心帶。PSP 發現太陽附近的情況出奇地複雜，其中包括迴轉--太陽磁場短暫逆轉的時候。
原文：What's happening near the Sun? To help find out, NASA launched the robotic Parker Solar Probe (PSP) to investigate regions closer to the Sun than ever before. The PSP's looping orbit brings it nearer to the Sun each time around -- every few months. The featured time-lapse video shows the view looking sideways from behind PSP's Sun shield during its 16th approach to the Sun last year -- from well within the orbit of Mercury. The PSP's Wide Field Imager for Solar Probe (WISPR) cameras took the images over eleven days, but they are digitally compressed here into about one minute video. The waving of the solar corona is visible, as is a coronal mass ejection, with stars, planets, and even the central band of our Milky Way Galaxy streaming by in the background as the PSP orbits the Sun. PSP has found the solar neighborhood to be surprisingly complex and to include switchbacks -- times when the Sun's magnetic field briefly reverses itself.
※ 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！
關於每日一天文圖：每日一天文圖網站是美國國家航空暨太空總署與密西根理工大學提供的服務，網站每天提供一張影像或圖片，並由天文學家撰寫扼要說明其特別之處。