Comet C/2025 A6 (Lemmon): View from Mexico

Comet C/2025 A6 (Lemmon): View from Mexico

Astrophotographer Braulio Guerra Urbiola: "Comet C/2025 A6 (Lemmon) . . . The green coma arises from sunlight exciting diatomic carbon (C₂) and cyanogen (CN). Its dust tail is shaped by radiation pressure and the solar wind as the comet travels at high velocity along its orbit toward perihelion."

Comet Lemmon was discovered early this year. It rounded the Sun on November 8, 2025. Comet Lemmon passed nearest to the Earth—about half the Earth-Sun distance—on October 21.

Image Credit: Braulio Guerra Urbiola

Image Details: Image produced from short, stacked exposures to preserve detail in the coma and developing tail. Telescopio Takahashi FQS-106ED Cámara ZWO ASI 2600 Duo Montura ecuatorial AM5 ZWO Exposiciones: 15 x 20 segundos (5 minutos totales) PixInsight + Lightroom
Braulio's website: https://app.astrobin.com/u/BraulioGuerra
Capture Location: Hidalgo, México

Image Date: Oct. 25, 2025

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