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猎户座流星雨观测指南
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十月 celestial events 丰富多彩,猎户座流星雨(Orionids)即将在10月22-23日达到峰值。来自哈雷彗星的尘埃和冰粒进入地球大气层燃烧,产生快速明亮的流星,甚至火球。NASA建议在午夜后远离光污染的东南(北半球)或东北(南半球)方向观测,注意云层影响。

🌠 猎户座流星雨由哈雷彗星留下的尘埃和冰粒引发,当这些微粒进入地球大气层燃烧时形成明亮流星,速度快达每秒41英里,部分亮流星会留下发光轨迹或成为火球。

📅 流星雨活跃期从10月2日持续至11月12日,最佳观测窗口为10月22-23日,此时流星数量最多,观测条件最佳。

🔭 观测建议:选择远离光污染的黑暗地点,观测前让眼睛适应黑暗至少20分钟,午夜后面向东南(北半球)或东北(南半球),同时关注当地天气预报以避开云层遮挡。

🌌 流星雨特点:猎户座流星雨以速度快、亮度高著称,部分亮流星会分解成多个光点或产生持续数秒的发光尾巴,非常壮观。

⚠️ 注意:由于流星雨强度每年变化较大,峰值亮度可能因年份和观测地点而异,建议提前查询当地实时观测条件。

October has been a fun month for celestial events, with both the Draconids and the Orionids meteor showers dazzling our skies. The Draconids happened earlier in the month, while the Orionids have been active for a few weeks now. But don't feel bad if you've not seen any yet, the Orionids only peak this week, so you've not missed your best chance to see a shooting star.

As we approach the main days, we've pulled together all the information you need for viewing and understanding what it's all really about.

What is the Orionids meteor shower?

Like the name suggests, the Orionids meteors come from the constellation, Orion. The actual meteor shower happens when tiny grains of dust and ice left behind by comet 1P/Halley enter Earth’s atmosphere and burn up, producing bright streaks of light across the sky, NASA tells us.

They are very fast, traveling at around 41 miles (66 kilometers) per second, and often leave glowing “trains." Some of the brighter meteors even become fireballs, creating spectacular flashes of light. AKA, what we see when we look up at the sky.

When will the Orionids meteor shower peak?

NASA data reveals the Orionids meteor shower will take place between Oct. 2 - Nov. 12. , but the peak is expected to be Oct. 22 - 23.

How to see the Orionids meteor shower

To see one of the Orionids meteors, you follow the advice you'd expect; wait until dark, try and get as far away from light pollution as you can, and make sure you give your eyes time to adjust to the light (ever noticed that the longer you're outside, the more stars you can see?). NASA also advises heading out after midnight and lying with your feet facing southeast if you are in the Northern Hemisphere or northeast if you are in the Southern Hemisphere.

Cloud coverage is important too, and can really impact your visibility. Before heading out, check the coverage forecast for your area.

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猎户座流星雨 哈雷彗星 天文观测 流星 NASA
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