彗星ZTF：轨道平面交叉
(原标题: Comet ZTF: Orbital Plane Crossing)
2023-01-27
浏览次数: 17
彗星C/2022 E3 ZTF是目前北方夜晚的宠儿，这张望远镜图像拍摄于美国加州六月湖的黑暗天空。当然，最近几天ZTF彗星变得越来越亮，它将于2月1日最接近地球。但这张照片是在1月23日拍摄的，非常接近地球穿过长周期彗星ZTF的轨道平面的时间。当彗星ZTF沿着它的轨道扫过时，这颗彗星宽阔的白色尘埃尾巴仍然是弯曲的，并向远离太阳的方向散开。由于在轨道平面交叉点附近的视角，扇形尘埃尾巴的组成部分出现在彗星绿色彗发的两侧，为ZTF彗星提供了一个视觉上引人注目的反尾巴（左图）。受到太阳活动的冲击，彗星较窄的离子尾巴也从彗发向右斜流，穿过近3度的宽视场。彗星ZTF画廊：值得注意的提交给APOD
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The current darling of the northern night, Comet C/2022 E3 ZTF is captured in this telescopic image from a dark sky location at June Lake, California, USA. Of course Comet ZTF has been growing brighter in recent days, headed for its closest approach to Earth on February 1. But this view was recorded on January 23, very close to the time planet Earth crossed the orbital plane of long-period Comet ZTF. The comet's broad, whitish dust tail is still curved and fanned out away from the Sun as Comet ZTF sweeps along its orbit. Due to perspective near the orbital plane crossing, components of the fanned out dust tail appear on both sides of the comet's green tinted coma though, to lend Comet ZTF a visually striking (left) anti-tail. Buffeted by solar activity the comet's narrower ion tail also streams away from the coma diagonally to the right, across the nearly three degree wide field of view. Comet ZTF Gallery: Notable Submissions to APOD
© Dan Bartlett