Copyright:
Andr� van der Hoeven
原文:
Tonight the Perseid Meteor Shower reaches its maximum. Grains of icy rock will streak across the sky as they evaporate during entry into Earth’s atmosphere. These grains were shed from Comet Swift-Tuttle. The Perseids result from the annual crossing of the Earth through Comet Swift-Tuttle’s orbit, and are typically the most active meteor shower of the year. Although it is hard to predict the level of activity in any meteor shower, in a clear dark sky an observer might see a meteor a minute. This year’s Perseids occur just before a new Moon and so the relatively dark sky should make even faint meteors visible. Meteor showers in general are best be seen from a relaxing position, away from lights. Featured here is a meteor caught exploding two weeks ago above Austria next to the central band of our Milky Way Galaxy. Note: NASA TV to Host Perseid Meteor Shower Program
中文翻譯:
今夜，英仙座流星雨達到最高峰。那些由冰冷的岩石所組成的顆粒，在進入地球大氣層時將會不斷蒸發，劃過夜空。這些顆粒是來自於斯威特-塔特彌陀星。英仙座流星雨是地球每年穿越斯威特-塔特彌陀星軌道時所產生的，通常是每年的最活躍流星雨。儘管很難預測任何流星雨的活動程度，在清澈而黑暗的天空下，觀察者可能會看到每分鐘一顆流星。今年的英仙座流星雨恰好在新月之前，因此相對較暗的天空應該能讓即使是微弱的流星也變得可見。通常觀看流星雨的最佳方式是以放鬆的姿勢，遠離燈光。以下這張照片捕捉到兩星期前在奧地利上空爆炸的流星，正好是在我們的銀河系中央帶旁邊。
#PerseidMeteorShower #流星雨 #斯威特塔特彌陀星 #觀星 #夜空奇觀 #MilkyWay #銀河系 #天文活動 #新月 #放鬆片刻
來源:NASA每日圖片
