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Picture of the Day
Lemmon at perihelion
Hassan Abdollahabadi, taken from Chelpo, Rivash, Iran
Comet Lemmon (C/2025 A6) is now on an outbound path, having reached perihelion — its closest point to the Sun — on Nov. 8. This imager captured the comet that night with a Canon mirrorless camera, stacking twenty 20-second sky frames taken with a 135mm lens at f/2.8 and ISO 1600.

November 2025
- Follow along on S. Alan Stern’s first spaceflight
- Top observing targets at the North Celestial Pole
- How to image faint comets
- We review Player One’s Zeus camera

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