This week brings a final chance to easily see Comet Lemmon (C/2025 A6) and perhaps the dimmer Comet SWAN (C/2025 R2) about 90 minutes after sunset from the Northern Hemisphere. Both comets can be seen using binoculars, in the northeast and southwest, respectively. On Tuesday, Oct. 28, 2025, both comets will be in their post-closest approach phase and drifting farther from Earth, with Lemmon closing in on its perihelion on Nov. 8, when it will swing closest to the sun. Although fading, both comets remain visible in binoculars both before dawn and after sunset under dark skies, but with the moon close to first quarter, the night sky will soon brighten.
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