Copyright:
Steed Yu and
NightChina.net
原文:
Where do Geminid meteors come from? In terms of location on the sky, as the featured image composite beautifully demonstrates, the sand-sized bits of rock that create the streaks of the Geminid Meteor Shower appear to flow out from the constellation of Gemini. In terms of parent body, Solar System trajectories point to the asteroid 3200 Phaethon — but this results in a bit of a mystery since that unusual object appears mostly dormant. Perhaps, 3200 Phaethon undergoes greater dust-liberating events than we know, but even if so, exactly what happens and why remains a riddle. Peaking last week, over 50 meteors including a bright fireball were captured streaking above Xinglong Observatory in China. Since the Geminids of December are one of the most predictable and active meteor showers, investigations into details of its origin are likely to continue. AAS Conventioneers: APOD Town Meeting Wednesday at 2:15 pm
中文翻譯:
🌌 你知道流星雨的真實來源嗎？雙子座流星雨的流星來自於空中的雙子座星座，而這些沙粒般的岩石碎片形成了我們於夜空中看到的流星劃過的光線。它們的父母體是小行星3200 Phaethon，但這個非尋常的物體似乎是靜止的，這使得它的來源成謎。科學家們仍在深入研究3200 Phaethon究竟如何釋放塵埃，以及為什麼會這樣。
上星期，雙子座流星雨達到高峰，在中國的興隆天文台上，成功捕捉到超過50顆流星的美麗畫面，包括一顆亮眼的火球。作為最可預測和最活躍的流星雨之一，雙子座流星雨的起源細節仍將是研究的重點。
🔭 AAS 會議參加者：APOD 城市會議 星期三下午2:15
#雙子座流星雨 #3200Phaethon #流星雨 #天文學 #興隆天文台 #夜空奇觀 #星空探索 #科學研究 #天文愛好者
來源:NASA每日圖片
