帕克太阳探测器的侧向景观

2024年2月19日

Looking Sideways from the Parker Solar Probe
Video Credit: NASA, JHUAPL, Naval Research Lab, Parker Solar Probe; Processing: Avi Solomon; h/t: Richard Petarius III;
Music: Beethoven’s Symphony No. 7, Second Movement; Music Credit: Wikimedia Commons

Explanation: 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.

Tomorrow’s picture: galactic pearls

帕克太阳探测器的侧向景观
影片提供: NASA, JHUAPL, Naval Research Lab, Parker Solar Probe; 影片处理: Avi Solomon; h/t: Richard Petarius III;
配乐: Beethoven’s Symphony No. 7, Second Movement; 配乐提供: Wikimedia Commons

说明: 太阳附近发生了什么事？为找出答案提供助力，美国航空航天局发射了帕克太阳探测器（PSP），针对比先前更靠近太阳的区域进行探索。帕克太阳探测器的回圈式轨道，让它每隔数个月就会接近太阳一次。这部延时主题影片，呈现了去年PSP第16次接近太阳到水星轨道以内时，于PSP的太阳遮罩后方所见到的侧向景观。帕克太阳探测器的宽场相机（WISPR）拍摄了超过11天的影像，不过在此处被数位压缩成播放长度约1分钟的影片。随着PSP绕行太阳，在影片里可以见到摇曳的日冕和日冕物质抛射，以及影像背景中飞掠而过的恒星、行星、及银河系的中央盘面。帕克太阳探测器发现邻近太阳的区域出奇的复杂，其中包括许多太阳磁场短暂逆转所造成的折返结构。 （Parker Solar Probe, PSP 帕克太阳探测器）

明日的图片: galactic pearls