黄道带的道路
(原标题: Zodiacal Road)
2025-08-10
浏览次数: 1485
路上那道光是什么？环绕太阳的尘埃。在一年中的某些时候，在日落之后或日出之前，来自太阳系内部的一条反射太阳的尘埃带会出现在显眼的地方，这被称为黄道光。虽然这些尘埃的起源仍在研究中，但一个主要的假设认为，黄道带尘埃主要来自微弱的木星家族彗星，并缓慢地螺旋进入太阳。最近对67P彗星发射的尘埃的分析支持了这一假设，67P彗星是由欧洲航天局的罗塞塔号探测器探测到的。这张照片是在西班牙加那利群岛的泰德国家公园爬山时拍摄的，日落后不久，远处出现了一个明亮的三角形黄道光。这张照片拍摄于2019年6月21日，包括明亮的轩辕十四，狮子座的阿尔法星，站在中间偏左的位置。蜂巢星团（M44）可以在中央下方被发现，更靠近地平线，也沉浸在黄道带的光芒中。
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What's that strange light down the road? Dust orbiting the Sun. At certain times of the year, a band of sun-reflecting dust from the inner Solar System appears prominently just after sunset -- or just before sunrise -- and is called zodiacal light. Although the origin of this dust is still being researched, a leading hypothesis holds that zodiacal dust originates mostly from faint Jupiter-family comets and slowly spirals into the Sun. Recent analysis of dust emitted by Comet 67P, visited by ESA's robotic Rosetta spacecraft, bolsters this hypothesis. Pictured when climbing a road up to Teide National Park in the Canary Islands of Spain, a bright triangle of zodiacal light appeared in the distance soon after sunset. Captured on June 21, 2019, the scene includes bright Regulus, the alpha star of the constellation Leo, standing above center toward the left. The Beehive Star Cluster (M44) can be spotted below center, closer to the horizon and also immersed in the zodiacal glow.
© Ruslan Merzlyakov (astrorms)