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总结
多家天文科普媒体与机构称，木星在2026年1月的今夜到达对冲，是今年“最亮、最大、观测条件最好”的时段之一；对冲意味着地球位于太阳与木星之间，使其整夜可见、亮度与视直径达到全年峰值。观测者在晴朗少光害环境下可用肉眼或双筒望远镜辨认其行星亮点，并有机会看到伽利略四大卫星排列；小型望远镜可进一步观察云带等细节。NASA与多家天文杂志发布天空指引与观测/拍摄建议，提示把握夜间窗口并注意保暖与出行安全。
正文
Jupiter is at its best and brightest of 2026 tonight! Here's what to expect as the gas giant reaches opposition Space Country diary: Look up! Tonight's the night to see Jupiter at its brightest | Nigel Brown The Guardian What's Up: January 2026 Skywatching Tips from NASA NASA Science (.gov) This Week's Sky at a Glance, January 9 - 18 Sky & Telescope The Sky This Week from January 9 to 16: Jupiter at opposition Astronomy Magazine
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