中国科学院紫金山天文台发布的十月天象预报显示，猎户座流星雨将在10月21日至22日迎来极大1。这场流星雨源自哈雷彗星留下的尘埃，以流星速度快、峰值持续时间长为特点1。观测者应在凌晨月亮落下后至天亮前的时段进行观测，以获得最佳效果1。
十月还将呈现多个值得关注的天象。水星将于十月中旬迎来东大距现象，这是今年最后一次在傍晚观测水星的机会1。此外，火星、木星与月亮将多次相伴出现，进一步为秋夜星空增添观赏价值1。
The Purple Mountain Observatory of the Chinese Academy of Sciences has released its October celestial forecast, announcing that the Orionid meteor shower will reach its peak on October 21-22.1 The meteor shower originates from dust particles left behind by Halley's Comet, and is characterized by fast-moving meteors with an extended peak duration.1 Observers are advised that the best viewing window occurs after the moon sets in the early morning hours until dawn breaks.1
Beyond the Orionid display, October's night sky will feature several notable celestial alignments, with Mars, Jupiter, and the moon appearing in close proximity on multiple occasions throughout the month.1 Additionally, Mercury will reach its greatest eastern elongation in mid-October, marking the final opportunity of the year to observe the planet in the evening sky.1 The forecast was issued by the Purple Mountain Observatory on September 30.1
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