Halley's Comet Sends Its Fireworks: The Orionids Peak Tonight
The annual Orionid meteor shower, made of debris from Halley's Comet, peaks around October 21-22 with up to 20 meteors an hour under dark skies.
If you can get somewhere dark tonight, look up. The Orionid meteor shower is at its peak right around now, and under good conditions you can expect to see something like 20 meteors an hour streaking across the sky. That’s not a Perseids-level spectacle, but it’s a solid, reliable show, and there’s something genuinely cool about what you’re actually watching.
Every bit of light in an Orionid meteor is a tiny fragment of Halley’s Comet, burning up in our atmosphere at something like 41 miles per second. Halley swings through the inner solar system roughly every 76 years, shedding a trail of dust and debris each pass. Earth crosses through that trail every October, and again in May, which means Halley effectively gifts us two meteor showers a year without ever showing up itself. The May version is the Eta Aquariids; the October version is what we’re getting tonight. Halley itself won’t be back in our skies until 2061, so these two showers are the closest most of us will get to seeing it in our lifetimes.
The Orionids get their name from the direction the meteors appear to radiate from — the constellation Orion, which is easy to spot this time of year thanks to its three-star belt. That said, you don’t need to stare directly at Orion to catch the show. Meteors from a given radiant can appear anywhere in the sky, and some of the best sightings come from looking a little off to the side, roughly 90 degrees from the radiant point, where trails tend to look longer.
A few practical notes if you’re planning to go out and watch. Give your eyes at least 20-30 minutes to adjust to the dark — phone screens are the enemy here, so if you must check your phone, use a red-light mode. Light pollution is the biggest variable in how many meteors you’ll actually see; a backyard in a city might get you a handful, while a truly dark rural sky could get you close to that 20-per-hour ceiling. The best viewing window tends to be after midnight and before dawn, when the side of Earth you’re standing on is facing into the direction of our orbital travel, plowing straight into the debris stream.
Moon phase matters a lot too. A bright moon can wash out all but the brightest meteors, so check what’s happening overhead before you commit to an all-nighter. Even without perfect conditions, the Orionids tend to produce a decent number of fast, bright meteors, and Halley-sourced debris is known for occasionally throwing off fireballs that leave a lingering trail.
It’s a nice reminder that comets aren’t just a one-time spectacle when they swing by — they leave a mark that keeps paying off for millennia. Halley last visited in 1986, and every October since (and for a very long time before), we’ve gotten to see fragments of that same object flare out overhead. If you miss the peak tonight, the shower will still be active for a few more days with gradually declining rates, so there’s no need to feel like you have exactly one shot at this.