Copyright:
Davide Necchi
原文:
What’s happened to the sky? Aurora! Captured late last month, this aurora was noted by Icelanders for its great brightness and quick development. The aurora resulted from a solar storm, with high energy particles bursting out from the Sun and through a crack in Earth’s protective magnetosphere a few days later. Although a spiral pattern can be discerned, creative humans might imagine the complex glow as an atmospheric apparition of any number of common icons. In the foreground of the featured image is the �lfus� River, while the lights illuminate a bridge in Selfoss City. Just beyond the low clouds is a nearly full Moon. The liveliness of the Sun — and the resulting auroras on Earth — is slowly diminishing as the Sun emerges from a Solar maximum of surface activity and evolves towards a historically more quite period in its 11-year cycle. In fact, solar astronomers are waiting to see if the coming Solar minimum will be as unusually quiet as the last one, where sometimes months would go by with no discernible sunspots or other active solar phenomena. Follow APOD on: Facebook, Google Plus, or Twitter
中文翻譯:
發生咩事喺天空裡？極光！這幅極光照片是在上個月拍攝的，冰島人提到它的明亮程度和迅速變化。這次的極光是由太陽風暴引起的，高能粒子從太陽噴發出來，並透過地球保護性磁層的裂縫進入地球大氣。雖然可以看出一個螺旋形的圖案，但有創意的我們可能會幻想出各種常見的圖形。照片前景是�lfus�河，燈光照亮了Selfoss City的一座橋樑。就在低雲之外是一輪幾乎滿月的明亮月亮。隨著太陽從表面活動的太陽極大期逐漸走向一個歷史上更為平靜的時期，太陽的活躍性也在慢慢減少。事實上，太陽天文學家正在觀察即將來臨的太陽極小期，看看它是否會像上一次那樣異常平靜，那時甚至會有幾個月沒有可辨識的黑子或其他活躍的太陽現象。
#極光 #Aurora #太陽風暴 #Selfoss #�lfus河 #自然奇觀 #攝影 #冰島 #太陽活動 #宇宙探索
分享這幅美麗的自然奇觀，與朋友一起感受宇宙的魔力！ 🌌✨
來源:NASA每日圖片
