Comet C/2025 A6 (Lemmon) is a non-periodic comet with an orbital period of approximately 1,350 years. Its perihelion occurred in the latter half of the 7th century.

This image was captured on October 31, 2025, at the S. A. Kolobov Observatory using an ASTROSIB RC500 telescope on an ASTROSIB AVM-700 mount with an SBIG Aluma AC4040-Ultimate (C2) astrocamera. A Luminance filter was used, with a total exposure time of 350 seconds.

This image was captured on November 3, 2025, at the S. A. Kolobov Observatory using an ASTROSIB RC500 telescope on an ASTROSIB AVM-700 mount with an SBIG Aluma AC4040-Ultimate (C2) astrocamera. RGB filters were used, with a total exposure time of 285 seconds.