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Two Comets Plus Meteors From Halley’s Comet: The Night Sky This Week

The Orionid meteor shower, caused by Halley's Comet debris, produces up to 20 meteors per hour with optimal dark skies due to a new moon on October 21, experts say.

  • On October 21 and 22 the Orionid meteor shower peaks under dark skies, producing meteors radiating from Orion's club above Betelgeuse.
  • Because Earth crosses Halley's debris, the Orionids result from passing through ice and dust Halley's Comet sheds each return, also producing the Eta Aquariid meteor shower in May.
  • To observe the shower, experts advise arriving about 30 minutes early at a dark site and reclining while meteoroids enter at 148,000mph, vaporising to create visible streaks to the naked eye.
  • Viewers should note the Orionids will be visible for several days, with 10 to 20 meteors per hour under dark, rural skies; northern areas may see up to 17, southern Australia about 12.
  • Looking beyond the Orionids, the Geminid meteor shower peaks December 14, while Comet Lemmon and Comet SWAN make close approaches this week.
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The meteor shower will be visible worldwide, with a peak expected on October 21st and 22nd.

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The Weather Network broke the news in on Saturday, October 18, 2025.
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