加拿大北部上空的极光

2022年10月9日

Auroras over Northern Canada
Image Credit & Copyright: Kwon, O Chul (TWAN)

Explanation: 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.

Tomorrow’s picture: double lunar analemma

加拿大北部上空的极光
影像提供与版权: Kwon, O Chul (TWAN)

说明: 来自太阳的高速太阳风和一波波的带电粒子，为2014年12月的数个夜晚，带来了让人引颈期盼、隶属于上个11年太阳活动周期极大期附近的极光活动。上面这幅主题影像，呈现了当时加拿大北部．黄刀镇上空，横跨整个天空的精采极光。这些极光是如此明亮，它们不只望之令人敬畏，而且要记录这些清楚可见的极光，只需短短的1.3秒曝光。与这些影像同时拍摄的一部影片，除了以真实速度记录了满天舞动的极光之外，也记录了许多专程来观赏极光的游客之欢呼赞叹。影像右侧这些圆锥状的建物，是印地安人的帐篷屋，而在影像中心的遥远背景里，则可见到猎户座。随着我们的太阳再次往活动极大期靠近，在接下来的数年之中，极光活动或许也会再增加。

明日的图片: double lunar analemma