标签： 彩虹

天文·每日一图

美国新泽西州上空的复虹

2022年11月27日 Supernumerary Rainbows over New Jersey Image Credit & Copyright: John Entwistle Explanation: Yes, but can your rainbow do this? After the remnants of Hurricane Florence passed over the Jersey Shore, New Jersey, USA in 2018, the Sun came out in one direction but something quite unusual appeared in the opposite direction: a hall of rainbows. O...

天文·每日一图

银河周围的彩色带状气辉

2022年3月13日 Colorful Airglow Bands Surround Milky Way Image Credit & Copyright: Xiaohan Wang Explanation: Why would the sky glow like a giant repeating rainbow? Airglow. Now air glows all of the time, but it is usually hard to see. A disturbance however — like an approaching storm — may cause noticeable rippling in the Earth’s atmospher...