紫金山-阿特拉斯彗星的颀长彗尾

2024年10月7日

The Long Tails Comet Tsuchinshan-ATLAS
Image Credit & Copyright: Jose Santivañez Mueras

Explanation: A bright comet is moving into the evening skies. C/2023 A3 (Tsuchinshan–ATLAS) has brightened and even though it is now easily visible to the unaided eye, it is so near to the Sun that it is still difficult to see. Pictured, Comet Tsuchinshan–ATLAS was captured just before sunrise from an Andes Mountain in Peru. Braving cold weather, this unusually high perch gave the astrophotographer such a low eastern horizon that the comet was obvious in the pre-dawn sky. Visible in the featured image is not only an impressively long dust tail extending over many degrees, but an impressively long and blue ion tail, too. This month, as the comet moves out from the Sun and passes the Earth, evening observers should be able to see the huge dirty ice ball toward the west just after sunset.

Growing Gallery: Comet Tsuchinsan-ATLAS in 2024
Tomorrow’s picture: circular sunspot

紫金山-阿特拉斯彗星的颀长彗尾
影像提供与版权: Jose Santivañez Mueras

说明: 一颗明亮的彗星逐渐移入傍晚的天空中。彗星C/2023 A3（紫金山–阿特拉斯）持续增亮，目前用肉眼就可轻易见到它；不过，由于它太靠近太阳，要观看仍然颇有难度。这幅摄于秘鲁 安地斯山脉的影像，呈现了紫金山–阿特拉斯彗星悬在日出前天空的景象。当时摄影者特地冒着严寒，前往这个拥有高海拔与极低东方地平线视野的地点拍照，让这颗彗星在黎明前的天空中变得格外清晰。这幅主题影像，不仅拍到绵延数度的长长尘尾，还记录了壮观的泛蓝离子尾。在这个月，随着彗星逐渐远离太阳并接近地球，在傍晚时分，观星者应能在日落后的西方天空看到这颗庞大的脏冰球。

不断增加的画廊: 2024年的紫金山-阿特拉斯彗星
明日的图片: circular sunspot