斯洛伐克上空的英仙座流星

2019 August 12

Perseid Meteors over Slovakia
Image Credit & Copyright: Petr Horálek

Explanation: Tonight is a good night to see meteors. Comet dust will rain down on planet Earth, streaking through dark skies during the peak of the annual Perseid Meteor Shower. The featured composite image was taken during last year’s Perseids from the Poloniny Dark Sky Park in Slovakia. The unusual building in the foreground is a planetarium on the grounds of Kolonica Observatory. Although the comet dust particles travel parallel to each other, the resulting shower meteors clearly seem to radiate from a single point on the sky in the eponymous constellation Perseus. The radiant effect is due to perspective, as the parallel tracks appear to converge at a distance, like train tracks. The Perseid Meteor Shower is expected to peak after midnight tonight, although unfortunately this year the sky will be brightened by a near full Moon.

斯洛伐克上空的英仙座流星
影像来源与版权: Petr Horálek

说明：今晚是观赏流星的绝佳夜晚。在今晚的英仙座流星雨极大期间，流星的微尘将洒向地球，滑过黝黑的天空。这幅组合主题影像，是在去年的英仙座流星雨期间，摄于斯洛伐克的波洛内尼暗夜公园。前景的不寻常建物，则是科洛尼卡天文台的星象馆。虽然流星尘埃微粒是平行进入大气，但是这群流星雨流星流星雨流星却像是辐射自英仙座内的一点。这种辐射效应是由透视所造成的，让平行线，也让铁轨看似会聚在远方。英仙座流星雨极大期将出现在今晚的子夜之后，但很令人遗憾的，届时夜空会受到接近满相的明月照亮。