日出前的阿特拉斯彗星
(原标题: Comet ATLAS Before Sunrise)
2025-01-13
浏览次数: 11
阿特拉斯彗星现在非常明亮，但也离太阳很近。在太阳的光芒之外，彗星C/2024 G3 （ATLAS）将是近年来最引人注目的彗星之一，它反射到地球的阳光与十月的冢山-ATLAS彗星一样多，现在甚至可以与金星相媲美。但是这个巨大的雪球现在离太阳太近了，只能通过清晨的黎明或傍晚的黄昏来看到它。今天，阿特拉斯彗星处于近日点——它离太阳最近。虽然彗星未来的亮度是出了名的难以预测，但阿特拉斯彗星还是有希望在它接近太阳的时候幸存下来，并且在接下来的几天里保持足够的亮度，可以用肉眼看到——可能在几周内都是一颗适合拍照的彗星。这张特色照片是昨天凌晨在斯洛伐克Tornaľa附近拍摄的。明天：纽约业余天文学家协会主办的Zoom APOD讲座
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Comet ATLAS is really bright now, but also really close to the Sun. Outside the glow of the Sun, Comet C/2024 G3 (ATLAS) would be one of the more remarkable comet sights of recent years, reflecting about as much sunlight to Earth as Comet Tsuchinshan-ATLAS did in October, and now rivaling even planet Venus. But the giant snowball is now so close to the Sun that it can only be seen through the light of the early morning dawn or the early evening dusk. Today, Comet ATLAS is at perihelion -- its closest ever to the Sun. Although the future brightness of comets is notoriously hard to predict, there is hope that Comet ATLAS will survive its close pass near the Sun and remain bright enough to be seen with the unaided eye over the next few days -- and possibly a good camera comet for weeks. The featured image was taken early yesterday morning near Tornaľa, Slovakia. Tomorrow: Zoom APOD Lecture hosted by the Amateur Astronomers of Association of New York
© Petr Horalek / Institute of Physics in Opava