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Astronomy / Comets

Watch Comets Lemmon and SWAN & Orionid Meteor Shower

October 2025 brings a unique opportunity to witness two comets, Lemmon (C/2025 A6) and SWAN (C/2025 R2), as they make their closest approach to Earth, along with the peak of the Orionid meteor shower. This convergence of celestial events of...

Watch comets Lemmon and SWAN make their closest approach to Earth today
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Watch Comets Lemmon and SWAN & Orionid Meteor Shower Image via Space

Key Insights

  • **Comet Lemmon (C/2025 A6):** Discovered in January 2025, visible with binoculars or small telescopes in the western evening sky after sunset. Approaching Earth and the sun, potentially visible with the naked eye.
  • **Comet SWAN (C/2025 R2):** Discovered in September 2025, best viewed in the predawn sky, low on the eastern horizon.
  • **Closest Approach:** Both comets expected to peak in brightness around October 20-21, 2025. Comet Lemmon will pass about 56 million miles from Earth, while Comet SWAN will be roughly 24 million miles away.
  • **Orionid Meteor Shower:** Peaks on the morning of October 21, 2025, producing 10-20 meteors per hour. Best viewed after midnight, especially in the hours before dawn. The moon will not interfere, making for a dark sky.

In-Depth Analysis

## Comet Lemmon (C/2025 A6) Comet Lemmon, with its greenish tint caused by diatomic carbon interacting with sunlight, has been brightening steadily since its discovery. It's a long-duration comet with an orbital period of about 1,350 years. Observers in the Northern Hemisphere can find it slightly below the handle of the Big Dipper in the northwestern-to-western sky after sunset.

## Comet SWAN (C/2025 R2) Comet SWAN, discovered more recently, is best viewed in the predawn sky. Its journey away from the sun offers a different perspective for skywatchers, appearing low on the eastern horizon.

## Orionid Meteor Shower The Orionid meteor shower is associated with Halley's Comet. As Earth passes through the debris field left by the comet, these particles enter our atmosphere and burn up, creating the shooting stars we see. The radiant point of the shower is near the constellation Orion.

**How to Prepare:** 1. **Find a Dark Location:** To maximize your viewing experience, find a location away from city lights. 2. **Check the Weather:** Clear skies are essential for seeing the comets and meteors. 3. **Use Binoculars or a Telescope:** While Comet Lemmon may become visible to the naked eye, binoculars or a small telescope will enhance your view. 4. **Be Patient:** It takes time for your eyes to adjust to the darkness, so allow at least 20 minutes before you start observing.

**Who This Affects Most:** * Astronomy enthusiasts and amateur stargazers. * Educators and students interested in space science. * Anyone curious about celestial events and the beauty of the night sky.

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FAQ

- **Q: When is the best time to view the comets and meteor shower?

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- **Q: Do I need special equipment to see the comets or meteor shower?

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Takeaways

  • **Comet Lemmon and Comet SWAN** are making their closest approach to Earth in October 2025, offering a unique opportunity for skywatchers.
  • **The Orionid meteor shower** peaks on October 21, 2025, providing a chance to see shooting stars associated with Halley's Comet.
  • **Find a dark location** and check the weather forecast to maximize your viewing experience.
  • **Use binoculars or a small telescope** for a better view of the comets.

Discussion

Do you think you’ll be able to spot the comets or meteors? Share your thoughts and viewing tips in the comments below!

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Disclaimer

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