揭開日冕的神秘面紗
The Solar Corona Unwrapped

來源:Barden Ridge Observatory|發表日期:2024-04-05
這幅創意合成圖詳細描述了誘人的日冕的變化,它繪製了兩次日全食期間太陽外部大氣的動態變化。從懷俄明州傑克遜霍爾看到的 2017 年日食(下圖)和從西澳大利亞埃克斯茅斯看到的 2023 年日食期間,整個日冕從被食太陽邊緣的完整圓形展開成矩形並被映象顯示出來。 2017 年的日食接近太陽 11 年活動週期中的最小值,而 2023 年的日食則更接近太陽的最大值。 2023 年的日冕暗示了活躍太陽的顯著不同特徵,沿太陽邊緣出現了許多流線和粉紅色的突出物。當然,只有站在月球的陰影下,肉眼才容易看到日冕。 NASA 報道: 2024 年日全食 4 月 8 日
原文:Changes in the alluring solar corona are detailed in this creative composite image mapping the dynamic outer atmosphere of the Sun during two separate total solar eclipses. Unwrapped from the complete circle of the eclipsed Sun's edge to a rectangle and mirrored, the entire solar corona is shown during the 2017 eclipse (bottom) seen from Jackson Hole, Wyoming, and the 2023 eclipse from Exmouth, Western Australia. While the 2017 eclipse was near a minimum in the Sun's 11 year activity cycle, the 2023 eclipse was closer to solar maximum. The 2023 solar corona hints at the dramatically different character of the active Sun, with many streamers and pinkish prominences arising along the solar limb. Of course, the solar corona is only easily visible to the eye while standing in the shadow of the Moon. NASA Coverage: Total Solar Eclipse of 2024 April 8
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