亚得里亚海上空的新智彗星

2022年7月26日

Comet NEOWISE Rising over the Adriatic Sea
Video Credit & Copyright: Paolo Girotti

Explanation: This sight was worth getting out of bed early. Two years ago this month, Comet C/2020 F3 (NEOWISE) rose before dawn to the delight of northern sky enthusiasts awake that early. Up before sunrise on July 8th, the featured photographer was able to capture in dramatic fashion one of the few comets visible to the unaided eye this century, an inner-Solar System intruder that has become known as the Great Comet of 2020. The resulting video detailed Comet NEOWISE from Italy rising over the Adriatic Sea. The time-lapse video combines over 240 images taken over 30 minutes. The comet was seen rising through a foreground of bright and undulating noctilucent clouds, and before a background of distant stars. Comet NEOWISE remained unexpectedly bright until 2020 August, with its ion and dust tails found to emanate from a nucleus spanning about five kilometers across.

Astrophysicists: Browse 2,800+ codes in the Astrophysics Source Code Library

Tomorrow’s picture: crepuscular moonrise

亚得里亚海上空的新智彗星
影片提供与版权: Paolo Girotti

说明: 为这一幕值得早起。2年前的这个月，彗星C/2020 F3（NEOWISE 新智) 在黎明前升起，成为早起的北半球天空爱好者的宠儿。当年在7月8日出之前早起的这位摄影者，更以戏剧性的方式记录了本世纪为数不多的裸视彗星之一；而这个内太阳系的造访者，后来更博得2020年大彗星的美名。他在意大利所拍摄的影片，细致的呈现新智彗星在亚得里亚海上方向上攀升的景象。在这部由摄于30分钟的240多张照片建构出的缩时影片里，这颗彗星看似从波纹状的夜光云内及背景恒星的前方冉冉升起。新智彗星在2020年8月前一直是意料的明亮，它的离子和尘埃尾起源于大小约5公里的彗核。

天体物理学家: 浏览天体物理学源代码库中的2,800多个代码

明日的图片: crepuscular moonrise