十月夜空将上演四场天文奇观

美国宇航局发布了十月天象观测指南，为北美地区的天文爱好者推荐了四大必看的天体事件1。

10月6日黎明前，木星将被月球掩蔽约一小时，这一现象在北美部分地区可以观测到1。随后的10月8日晚9点东部夏令时起，天龙座流星雨将开始上演，这是一场难得的在日落后不久即可看到的流星雨1。根据美国宇航局的估计，在城市郊区观测者每小时可目睹3至6颗流星，而在偏远地区可见更多1。

10月21日，猎户座流星雨将达到峰值，这场流星雨源自哈雷彗星在太阳系运行过程中遗留的碎片1。猎户座满月在10月26日世界协调时达到满月，但北美地区的观测者将在10月25日晚间看到这轮满月照亮天空1。

NASA has released a guide highlighting the most significant astronomical phenomena visible during October 1. The month features a rare occultation, two meteor showers, and a notable full moon that together create a series of viewing opportunities for observers across North America.

On the morning of October 6th, Jupiter will pass behind the Moon in an occultation lasting approximately one hour, an event visible from parts of North America 1. Just days later, the Draconids meteor shower will reach its peak on the night of October 8th, becoming notable as one of the few meteor showers observable shortly after sunset, with activity beginning around 9 p.m. EDT 1. The Orionids meteor shower will follow later in the month, peaking on October 21st and originating from debris left by Halley's Comet as it travels through the solar system 1. Observers in suburban areas can expect to see between three and six meteors per hour, while those in remote locations away from light pollution will have the opportunity to observe significantly more 1.

Rounding out the month's celestial highlights is the Orionids full moon, which will reach its full phase on October 26th Universal Time, though North American observers will see it fully illuminated on the night of October 25th 1.