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原文:
One of the most spectacular solar sights is an erupting prominence. In 2011, NASA’s Sun-orbiting Solar Dynamic Observatory spacecraft imaged an impressively large prominence erupting from the surface. The dramatic explosion was captured in ultraviolet light in the above time lapse video covering 90 minutes, where a new frame was taken every 24 seconds. The scale of the prominence is huge — the entire Earth would easily fit under the flowing curtain of hot gas. A solar prominence is channeled and sometimes held above the Sun’s surface by the Sun’s magnetic field. A quiescent prominence typically lasts about a month, and may erupt in a Coronal Mass Ejection (CME) expelling hot gas into the Solar System. The energy mechanism that creates a solar prominence is still a topic of research. As the Sun passes Solar Maximum, solar activity like eruptive prominences are expected to become less common over the next few years.
中文翻譯:
🌞 一個最壯觀的太陽景象就係噴發的日冕 (solar prominence)。喺2011年，NASA嘅太陽軌道觀測衛星 Solar Dynamic Observatory 捕捉咗一個印象深刻嘅大型日冕從太陽表面噴發出來。呢個劇烈爆炸喺紫外線光下被拍攝，經過90分鐘的時間延遲視頻，每24秒拍攝一個新畫面。日冕的規模相當驚人——整個地球輕而易舉地可以置於這股流動的熱氣幕布之下。
一個日冕通常會被太陽的磁場引導並保持在太陽表面之上。一個靜態的日冕通常會持續大約一個月，並可能以日冕質量拋射 (Coronal Mass Ejection, CME) 的形式爆發，將熱氣拋射到太陽系中。造成日冕的能量機制仍然是一個研究話題。隨著太陽進入太陽極大期 (Solar Maximum)，未來幾年內，像噴發日冕這樣的太陽活動預計會變得不那麼常見。
#日冕 #太陽活動 #NASA #SolarDynamicObservatory #紫外線 #烈焰 #宇宙探索 #科學 #太陽系 #日冕質量拋射 #SolarProminence #SolarMaximum
來源:NASA每日圖片
