APOD251223 意大利上空的红色精灵与圆形精灵闪电 - 天文(Astronomy)版

 返回天文版

APOD251223 意大利上空的红色精灵与圆形精灵闪电

AstroAstro 2026-01-02 15:08:06

[楼主]1楼

意大利上空的红色精灵与圆形精灵闪电

[点击查看图片]

图像提供与版权： Valter Binotto[1]

英文原文:Explanation: What's happening in the sky? Lightning . The most commonly seen type of lightning involves flashes of bright white light between clouds. Over the past 50 years, though, other types of upper-atmospheric lightning have been confirmed, including tentacled red sprites and ringed ELVES . Although both last only a small fraction of a second, sprites are brighter and easier to photograph than their more common electrical-discharge cousins. ELVES are rapidly expanding rings that are thought to be created when an electromagnetic pulse shoots upward from charged clouds and impacts the ionosphere , causing nitrogen molecules to glow. Capturing either form of lightning takes patience and experience -- capturing them both together , since they usually occur separately, is rare. The featured image is a frame from a video recorded from Possagno , Italy late last month above a distant thunderstorm over the Adriatic Sea . 说明：什么正在天空中发生？闪电[2]。最常见的闪电类型是在云层之间出现的闪光[3]，这些闪光通常是明亮的白光[4]。然而，在过去的50年中，其他高空大气闪电类型[5]已被确认，包括触手般的红色精灵[6]和环状的淘气精灵 ELVES[7]。虽然这两者都只持续极短的时间，但红色精灵[8]比其常见的电气放电[9]亲戚更明亮且更容易拍摄。淘气精灵[10]是快速扩展的环状闪电，目前认为是由带电云层放电所产生向上的电磁脉冲[11]撞击电离层[12]导致氮[13]分子发光而形成的。拍摄这两种闪电都需要耐心和经验-由于它们通常是分开发生的，因此同时拍摄两者非常罕见。主题图像[14]截取自上个月底在意大利[15] 波萨尼奥Possagno[16]拍摄的一段视频，视频拍摄远处亚得里亚海[17]上空的一场雷暴[18]之上。