Orionid Meteor Shower Peaks Amidst Two Visible Comets

The Orionid meteor shower is set to peak in the early morning hours of Tuesday, October 21, offering skywatchers an opportunity to observe up to 20 meteors per hour. The optimal viewing window is between 11 p.m. and 2 a.m. local time. This year, the peak coincides with a new moon phase, providing darker skies that enhance visibility. The Orionids are known for their swift, bright meteors, some of which leave persistent gas trails. While they can appear anywhere in the sky, they predominantly radiate from the Orion constellation.

In addition to the meteor shower, two comets—Comet Lemmon (C/2025 A6) and Comet SWAN (C/2025 R2)—are currently visible. Comet Lemmon, discovered in January 2025, will be closest to Earth on October 21, passing at a distance of approximately 55 million miles. It is best viewed about 90 minutes after sunset in the northwestern sky, near the bright star Arcturus in the Boötes constellation.

Comet SWAN, first observed in September 2025, will make its closest approach on October 20, coming within 24 million miles of Earth. Observers should look toward the southwestern sky, just below the bright star Altair in the constellation Ophiuchus, approximately 90 minutes after sunset.

Both comets originate from the Oort Cloud, a distant region of icy bodies in the solar system. Comet Lemmon has an orbital period of about 1,150 years, while Comet SWAN's orbit spans over 22,000 years, making their simultaneous visibility a rare event.

For optimal viewing of these celestial events, it is recommended to find a dark location away from city lights. Using binoculars may enhance the experience, especially for observing the comets.