171216期:冬日的流星雨

冬日的流星雨

四个双子座流星群划过北方天穹,打破了这个冬夜的宁静。在这场双子座流星雨即将达到顶峰之际,一次10秒长曝光成功捕捉到这颗明亮的大流星与3颗微弱小流星的影像。影像前景摄于加拿大阿尔伯塔省贾斯珀国家公园,部分湖面已冰封的埃迪斯湖反射着大流星的绿色光芒,落基山脉横亘于前并沿北部地平线延伸。严寒已成为这座冰川湖的常态,即使在夏天也不例外。摄影师杰克·福斯科(Jack Fusco)称当晚遭遇了零下九度的低温,但他表示,这场流星雨是他所观赏过最活跃的流星雨活动之一。

译:银河说翻译组 俞天丽

A Wintry Shower
Image Credit & Copyright: Jack Fusco

Explanation: Four Geminids flash through northern skies in this wintry night skyscape. The bright fireball and 3 fainter meteors were captured in a single 10 second exposure, near the peak of December’s Geminid meteor shower. Reflecting the fireball’s greenish light, a partially frozen Lake Edith in Alberta Canada’s Jasper National Park lies in the foreground, with the Canadian Rocky Mountains ranging along the northern horizon. Of course, the glacial lake is cold even in summer. But photographer Jack Fusco reports that he experienced -9 degree C temperatures that night while enjoying one of the most active meteor showers he’s ever seen.

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