Comet C/2025 K1 Atlas
in Serpins
Comet C/2025 K1 (ATLAS) was discovered in May 2025 by the Asteroid Terrestrial-impact Last Alert System (ATLAS) survey. The comet is currently approaching perihelion, its closest point to the Sun, which it will reach on October 8, 2025. Due to this close approach—just 0.33 AU from the Sun, inside Mercury’s orbit—the comet faces a significant risk of disintegration from the intense solar heating. If it survives, it is predicted to brighten significantly, potentially reaching a magnitude of 7, making it visible with binoculars. Its trajectory also brings it close to Earth on two occasions, once in August and again in November 2025, providing a compelling target for observers. Written by Gemini AI.
Imaging Details
Telescope: 6 inch f/4 Newtonian with Paracorr Type 2 (effective focal length 690mm) and 2” Feather Touch Focuser
Camera: Player One Poseidon-C Pro, Optolong L-Pro filter, Phoenix Filter Wheel 2″x5
Resolution: 1.11 arcsec/px
Mount: Mesu Mount 200
Guiding: Player One OAG Max and ZWO ASI290MM Mini guide camera
Exposure Length: OSC: 60 sec x 12, 120 sec x 22
Location: Glenwood, MN
Date: 8/24/2025
Software: SciTech, SkyGuide (Innovations Foresight), N.I.N.A., Optic FocusLynx, Pixinsight, SkySafari Pro