Green Comets Illuminate October Skies: How to Capture the Celestial Phenomenon
• Two green comets, 12P/Pons-Brooks and C/2023 H2 Lemmon, are visible in October's night skies, offering a unique opportunity for skywatchers.
• The comets' green glow is caused by diatomic carbon fluorescing in sunlight, and they are best viewed away from city lights.
• Use a tripod-mounted DSLR or mirrorless camera with a fast lens and appropriate exposure settings to capture comet trails; a star tracker is recommended.
October skies light up with green comets
October 2025 presents a rare opportunity for skywatchers and astrophotographers with the appearance of two green comets. Comet 12P/Pons-Brooks and Comet C/2023 H2 Lemmon are currently visible, offering a unique chance to observe and photograph these celestial wonders. According to Forbes, these comets are now visible with binoculars and can be photographed with basic astrophotography equipment under the right conditions.
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