2025年1月3日
Comet ATLAS Before Sunrise
Image Credit & Copyright: Petr Horalek / Institute of Physics in Opava
Explanation: 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
Tomorrow’s picture: do north
日出前的阿特拉斯彗星
影像提供与版权: Petr Horalek / Institute of Physics in Opava
说明: 阿特拉斯彗星（C/2024 G3 ATLAS）现在非常明亮，不过，也非常接近太阳。若非受到太阳炫光的影响，这颗彗星会是近年来最壮观的彗星之一，它反射到地球的阳光之亮度，与去年10月的紫金山-阿特拉斯彗星相当，而它目前的亮度也堪与金星 媲美。然而，这颗庞大的雪球极靠近太阳，目前隐没在清晨的曙光或傍晚的暮光中。今天，阿特拉斯彗星将运行到最接近太阳的近日点。虽然彗星未来的亮度极难预测，但如果阿特拉斯彗星近距离通过太阳后，能存活下来，它有机会成为肉眼可见的彗星，并在接下来的数星期中，成为绝佳的相机拍摄标的。这幅主题影像，是在昨天清晨摄于斯洛伐克的托纳拉镇附近。
明天: 由纽约业余天文学家协会主办的线上APOD讲座
明日的图片: do north
