Halley's Debris Returns: Orionids Peak October 21-22 Under a Meddling Moon
The Orionid meteor shower reaches its peak on the night of Wednesday, October 21, into the early hours of Thursday, October 22. The shower is active from October 2 through November 7, according to the American Meteor Society, and forecasters stress that its maximum is a broad plateau rather than a sharp spike. EarthSky, cited by Forbes, puts the nominal peak near 18:00 UTC on October 21, but adds that several pre-dawn mornings around October 20-24 should deliver similar rates. In short, clouded out on peak night? Try again the next morning.
Under genuinely dark skies, NASA and the American Meteor Society expect roughly 10 to 20 Orionids per hour at maximum. Time and Date Recommends planning for around 20 per hour, while the Farmers' Almanac stretches the range to 15 to 25 depending on sky quality. What the Orionids lack in numbers they make up in drama: their particles slam into the atmosphere at about 41 miles per second (66 kilometers per second), among the fastest of any annual shower, and roughly half leave lingering glowing trains. Outburst years prove the upside: from 2006 to 2009, rates surged to 50 to 75 per hour.
The villain of 2026 is moonlight. A waxing gibbous Moon about 74 percent illuminated will wash out fainter meteors for much of the night, Space.com and WeatherBug report, with the full Moon not due until October 26. The rescue comes after midnight: the Moon sets a few hours past midnight, opening a dark window before dawn just as the constellation Orion climbs high. That pre-dawn interval, when the radiant soars, is unanimously billed as the best viewing of the night.
The Weather Channel's October 20 regional cloud forecast splits the United States in two. Much of the central and eastern U.S. should enjoy clear skies in the early morning hours of Thursday the 22nd, prime conditions for a meteor watch. The West draws the short straw: tropical moisture funneled into the region brings rain and storms Wednesday and Thursday, with flooding a concern across parts of California, Nevada and the Four Corners, making skywatching a likely no-go. Patchy skies also threaten California, Oregon and Washington. On the East Coast, a developing offshore nor'easter could push clouds into the Northeast, especially around New York. Across the Atlantic, BBC Weather sees a similar split: long clear spells for southern and eastern England, while Wales, the Midlands and northern England face cloud and outbreaks of rain from a slow-moving front, turning patchier with breaks later in the night.
The Orionids are debris shed by 1P/Halley, better known as Halley's Comet, which last visited the inner solar system in 1986 and will not return until 2061. Earth crosses its dusty trail twice a year, producing the Eta Aquariids each May and the Orionids each October. The meteors appear to radiate from near the red giant Betelgeuse in Orion, rising in the east and climbing through the night. Veteran guidance: face southeast in the Northern Hemisphere, look 45 to 90 degrees away from the radiant for the longest trails, give eyes 15 to 30 minutes to adapt, and skip the telescope. Saudi Arabia's Noor Astronomy Association notes the display is a naked-eye event from dark locations, and the shower is visible from both hemispheres.