三个英仙座之夜
(原标题: Three Perseid Nights)
2021-08-20
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相机在星空下度过了三个无月之夜，拍摄了这幅合成的夜空。它们是在8月11日至13日被记录下来的，当时地球正扫过斯威夫特-塔特尔彗星的尘埃轨迹。一张长时间曝光，前景未被追踪，以及许多英仙座流星雨的恒星追踪照片都是在匈牙利的Magyaregres村拍摄的。每一颗流星的轨迹都与背景恒星对齐，都指向英仙座每年的流星雨的光芒，英仙座英勇地矗立在这片乡村的地平线上。当然，彗星尘埃粒子是沿着彼此平行的轨迹运动的。这种辐射效应仅仅是由于透视的原因，因为平行的轨迹在星空的衬托下似乎会聚在一起。著名的APOD图片提交：英仙座流星雨2021
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Frames from a camera that spent three moonless nights under the stars create this composite night skyscape. They were recorded during August 11-13 while planet Earth was sweeping through the dusty trail of comet Swift-Tuttle. One long exposure, untracked for the foreground, and the many star tracking captures of Perseid shower meteors were taken from the village of Magyaregres, Hungary. Each aligned against the background stars, the meteor trails all point back to the annual shower's radiant in the constellation Perseus heroically standing above this rural horizon. Of course the comet dust particles are traveling along trajectories parallel to each other. The radiant effect is due only to perspective, as the parallel tracks appear to converge in the distance against the starry sky. Notable APOD Image Submissions: Perseid Meteor Shower 2021
© Balint Lengyel