Comets on Sergey's Astrophotography

Comet C/2025 A6 (Lemmon) in Motion

Sun, 26 Oct 2025 00:00:00 +0000

A short time-lapse of comet C/2025 A6 (Lemmon) moving against the background stars.

Frames were calibrated, aligned and assembled into the video.

Comet C/2025 R2 (SWAN)

Sun, 26 Oct 2025 00:00:00 +0000

Comet C/2025 R2 (SWAN) shows a large, luminous green coma with a faint tail stretching sideways across a rich star field; a small group of galaxies sits upper left.

Stacked on the comet to keep the coma sharp and processed in PixInsight.

Comet C/2025 A6 (Lemmon) and NGC 3180

Sun, 05 Oct 2025 00:00:00 +0000

Comet C/2025 A6 (Lemmon) with a vivid green coma and a long ion tail that shows fine filamentary structure, with the spiral galaxy NGC 3180 in the same field.

Stacked on the comet and on the stars separately, then combined and processed in PixInsight.

Comet C/2023 A3 (Tsuchinshan–ATLAS)

Sun, 20 Oct 2024 17:27:00 +0000

Comet C/2023 A3 (Tsuchinshan–ATLAS) a few days after its closest approach to Earth: a compact green coma, from the glow of diatomic carbon, trails a broad, bright dust tail across the frame.

Stacked on the comet to keep the nucleus sharp and processed in PixInsight.