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Community photo entitled C/2025 A6 (Comet Lemmon): A Visitor Beyond the Frost Line by Jelieta Walinski Ph.D on 10/24/2025 at Desert Bloom Observatory, AZ, USA

C/2025 A6 (Comet Lemmon): A Visitor Beyond the Frost Line

On 10/24/2025 07:03 pm by Jelieta Walinski Ph.D | Website | Desert Bloom Observatory, AZ, USA

Description:
Captured on the evening of October 24, 2025, from Desert Bloom Observatory in St. David, Arizona, this image reveals the subtle beauty of Comet C/2025 A6 (Lemmon)—a celestial wanderer tracing its path through the outer reaches of our Solar System. Using a Celestron Nexstar Evolution 9.25” Schmidt-Cassegrain telescope paired with a ZWO ASI2600MC Pro camera, the comet’s delicate coma and faint green hue emerge through the Optolong L-Pro multiband pass filter, hinting at ionized gases released as sunlight warms its icy core. Guided by precision optics and the quiet hum of equatorial tracking, this frozen relic from the early Solar System whispers stories from the age of planetary creation—its journey, timeless and luminous, across the star-filled silence.

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

3 sec of 52 images stack in deepsky stacker, processed in Pixinsight, and photoshop