Copyright:Petr Horálek
原文:
Have you watched the Perseid meteor shower? Though the annual shower’s predicted peak was last night, meteor activity should continue tonight (August 13/14), best enjoyed by just looking up in clear, dark skies after midnight. Of course, this year’s Perseid shower has the advantage of being active near the August 14 New Moon. Since the nearly New Moon doesn’t rise before the morning twilight many fainter meteors are easier to spot until then, with no interference from bright moonlight. The Perseid meteor shower last occurred near a New Moon in 2013. That’s when the exposures used to construct this image were made, under dark, moonless skies from Hvar Island off the coast of Croatia. The widefield composite includes 67 meteors streaming from the heroic constellation Perseus, the shower’s radiant, captured during 2013 August 8-14 against a background of faint zodiacal light and the Milky Way. The next moonless Perseid meteor shower will be in August 2018.
中文翻譯:
你有冇觀賞過英仙座流星雨？雖然這年一度的流星雨預測在昨晚達到峰值，但今晚（8月13/14）流星活動仍會持續，可在清晰、黑暗的天空中於午夜後仰望欣賞。今年的英仙座流星雨恰好接近8月14日的朦朧新月，由於這個將於早晨黎明前才升起的近新月，讓許多較微弱的流星更容易被捕捉到，因為無明亮的月光干擾。英仙座流星雨上次在新月期間出現是在2013年。這幅圖片的曝光是在克羅埃西亞海岸的哈瓦爾島（Hvar Island）拍攝的，當時的天空無雲且沒有月光。這幅寬幅合成作品包含67顆流星漫遊自英仙座（Perseus），這是流星雨的輻射點，拍攝於2013年8月8日至14日，背景是微弱的黃道光和銀河。下一次無月光的英仙座流星雨將會在2018年8月。
#英仙座流星雨 #PerseidMeteorShower #觀星 #流星 #宇宙 #HvarIsland #克羅埃西亞 #流星雨 #太空 #天文學
來源:NASA每日圖片
