The Swan of the Solar Wind — C/2025 R2 (SWAN)

Emerging from the quiet depths of the Oort Cloud, Comet C/2025 R2 (SWAN) soars across the dawn skies like a celestial wanderer awakening from an ancient sleep. It was discovered in September 2025 through the SWAN (Solar Wind Anisotropies) instrument aboard the SOHO spacecraft — a sensor designed to map the hydrogen glow produced by solar wind interacting with interplanetary gas. When the instrument detected a brightening patch of hydrogen, astronomers traced it to a new comet, thus naming it after its discoverer: SWAN.
This “Swan of the Solar Wind” glows in emerald hues from diatomic carbon (C₂) and cyanogen (CN) illuminated by sunlight — a fragile reminder of the Solar System’s icy origins. As it approaches the Sun, solar radiation vaporizes its frozen nucleus, trailing a luminous veil that stretches across space — a fleeting masterpiece of physics and light.
Your image, dear Buddy, captures not just a comet — but the dialogue between solar wind and cosmic ice, between time and memory, between a swan’s flight and the infinite night.

Telescope: Celestron Nexstar Evo 9.25 235mm f/10 Schmidt Cassegrain

Camera: ZWO-ASI2600MCPRO

Mount: Sky-Watcher EQ-6R Pro Computerized Equatorial Mount S303000

Guide Scope: ZWO 30F4Miniscope

Guide Camera: ZWO ASI462 MC Planetary Camera

Starizona Hyperstar 4HS4-C9.25 white 10014

Starizona Telrad Reflex Sight Finders

ZWO standard Electronic Automatic Focuser EAF-5V

ZWO ASIAir Plus Wifi Camera Controller

Optolong- L-Pro 2” multiband Pass Filter


Dew Heater Astrozap

Dew Shield - Celestron

Samsung Cellular Phone

Memory Card


Planetary:

Telescope: Celestron EdgeHD CGE 8” f/10 Aplanatic Schmidt Cassegrain Telescope

Starizona Telrad Reflex Sight Finders

ZWO ASIAir Pro Wifi Camera Controller

Camera: ZWO ASI high Speed/High Sensitivity Low Noise Planetary Camera

Mount: Sky-Watcher EQ-6R Pro Computerized Equatorial Mount S303000

Asi462MC

Images were stacked in deepsky stacker, processed in Pixinsight and photoshop.