Sergey's Astrophotography

Comet C/2025 R2 (SWAN)

“Comet SWAN with a large, bright green coma and a faint tail drifting across a rich star field.”

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.

Total Exposure
Comet-aligned stack
Focal Length
455mm

Integration

FilterSubs
Color (OSC)stacked frames (comet-aligned stack)

Locations

Ca' del Monte, Lombardy, Italy
Bortle Class 4 • 2025-10-26