Copyright:Malcolm Park
原文:
Leonid meteors rained down on planet Earth this week, the annual shower of dusty debris from the orbit of Comet 55P/Tempel-Tuttle. Leonids streak through this composite night skyview from a backyard observatory in southern Ontario. Recorded with camera fixed to a tripod, the individual frames capture the bright meteor activity throughout the night of November 16/17, about a day before the shower’s very modest peak. The frames are registered to the fixed field of view, so the meteor trails are not all aligned to the background star field recorded that same evening when nebula-rich Orion stood above the southern horizon. As a result, the trails don’t appear to point back to the shower’s radiant in Leo, situated off the left edge of the star field frame. In fact, some trails could be of Taurid meteors, a shower also active in November, or even sporadic meteors, including a bright fireball with its reflection near the horizon.
中文翻譯:
本週，Leonid 流星雨在地球上空驚喜上演，這是來自彗星 55P/Tempel-Tuttle 軌道的年度塵埃碎片雨。這幅合成夜空圖片來自南安大略省的一個後院天文台，長時間曝光的相機固定在三腳架上，拍攝了11月16日至17日那晚的流星活動。雖然距離流星雨的高峰僅約一天，但畫面中捕捉到的明亮流星令人驚嘆。由於畫面的固定視野，流星的痕跡並未與同晚記錄的星空對齊，當時以星雲豐富的獵戶座星座高懸於南方地平線，因此流星痕跡並不指向位於星場左側的流星雨輻射區。此外，一些流星痕跡可能來自11月同樣活躍的金牛座流星雨，甚至還包括一些隨機流星，其中甚至有一顆明亮的火球及其在地平線附近的倒影。
#Leonids #流星雨 #星空 #Comet55P #天文 #獵戶座 #南安大略 #天文觀測 #火球 #流星追蹤 #夜空 #Astronomy #MeteorShower #Orion #SouthernOntario #Stargazing
來源:NASA每日圖片
