Two Comets Visible in the Night Sky This Month

Two greenish comets, C/2025 A6 (Lemmon) and C/2025 R2 (SWAN), are visible in the Northern Hemisphere this fall, with Comet Lemmon potentially observable to the naked eye around October 21. Both comets can be seen through binoculars or small telescopes until the end of October, while an interstellar comet, 3I/ATLAS, will make its closest approach to the sun around October 30.

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