Copyright:
Big Bear Solar Obs.,
NJIT,
Alan Friedman
(Averted Imagination)
原文:
When does the Sun look like a flower? In a specific color of red light emitted by hydrogen, as featured here, some regions of the solar chromosphere may resemble a rose. The color-inverted image was taken in 2014 October and shows active solar region 2177. The petals dominating the frame are actually magnetically confined tubes of hot plasma called fibrils, some of which extend longer than the diameter of the Earth. In the central region many of these fibrils are seen end-on, while the surrounding regions are typically populated with curved fibrils. When seen over the Sun’s edge, these huge plasma tubes are called spicules, and when they occur in passive regions they are termed mottles. Sunspot region 2177 survived for several more days before the complex and tumultuous magnetic field poking through the Sun’s surface evolved yet again. Follow APOD on: Facebook, Google Plus, or Twitter
中文翻譯:
當太陽看起來像一朵花時，正是因為它所發出的紅色光線，這種光線由氫原子發出。這幅色彩反轉的圖片拍攝於2014年10月，顯示了活躍的太陽區域2177。畫面中佔主導地位的“花瓣”其實是由熱等離子體組成的磁性約束管，稱為纖維，其中一些甚至延伸超過地球的直徑。在中央區域，許多纖維的端面可見，而周圍地區則通常佈滿彎曲的纖維。當這些巨大的等離子體管在太陽邊緣被觀察時，稱為刺絲，而在靜止區域則稱為斑點。太陽黑子區域2177在幾天內依然存在，隨後，穿透太陽表面的複雜且動盪的磁場又進一步演變。
#太陽 #天文學 #活動區域2177 #紅光 #等離子體 #太陽觀測 #天體物理 #花瓣 #太陽黑子 #刺絲 #纖維 #科學探索 #天文攝影
來源:NASA每日圖片
