加拿大北部的极光
(原标题: Auroras over Northern Canada)
2022-10-09
浏览次数: 17
2014年12月，太阳的太阳风和带电粒子的爆炸导致了几个极光的夜晚，接近最后一个11年太阳周期的高峰。这张特色图片捕捉到了加拿大北部耶洛奈夫镇附近天空中壮观的极光。极光如此明亮，不仅令人敬畏，而且在曝光仅1.3秒的情况下就很容易看到。与此同时拍摄的一段视频显示，舞动的天光实时演变，许多游客只是为了看极光而来，他们欢呼雀跃。图像右侧的圆锥形住宅是尖状的，而在远处的背景中，靠近图像中心的是猎户座。在接下来的几年里，随着太阳再次接近太阳活动极大期，极光可能会再次增加。
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Gusting solar winds and blasts of charged particles from the Sun resulted in several rewarding nights of auroras back in 2014 December, near the peak of the last 11-year solar cycle. The featured image captured dramatic auroras stretching across a sky near the town of Yellowknife in northern Canada. The auroras were so bright that they not only inspired awe, but were easily visible on an image exposure of only 1.3 seconds. A video taken concurrently shows the dancing sky lights evolving in real time as tourists, many there just to see auroras, respond with cheers. The conical dwellings on the image right are tipis, while far in the background, near the image center, is the constellation of Orion. Auroras may increase again over the next few years as our Sun again approaches solar maximum.
© Kwon, O Chul (TWAN)