|
Perseid Meteors over Slovakia 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 今晚是觀賞流星的絕佳夜晚。彗星塵埃將會像下雨一樣降落在地球上,，每年一度的英仙座流星雨將劃過黑暗的天空,。這幅特征圖像是在去年英仙座流星雨期間在斯洛伐克的波洛內(nèi)尼暗夜公園拍攝的。前景中與眾不同的建筑是科羅妮卡天文臺的一座天象廳,。盡管彗星塵埃顆粒彼此平行運動,，但由此形成的流星雨看起來似乎是從天空中的一個點輻射出來的。輻射效應(yīng)歸因于角度問題,，因為平行的流星余跡似乎會在遠處匯聚于一點,，就像火車軌道一樣。英仙座流星雨預(yù)計將在今晚午夜后達到峰值,，但是不幸的是，今天的夜空將被一輪滿月照亮,。 原圖地址： https://apod./apod/image/1908/PerseidsSlovakia_Horalek_1089.jpg 近期文章： Astronomy Picture of the Day——哈勃展示的木星新肖像 |
|
|
