Bubbles in the Cosmos: NGC 7635 from Desert Bloom Observatory


On June 21, 2025, I captured the ethereal beauty of NGC 7635, a stunning emission nebula in the constellation Cassiopeia. From the vantage point of Desert Bloom Observatory, I spent 5 hours gazing at this celestial wonder, gathering 20 exposures of 900 seconds each.

Using Deep Sky Stacker, I meticulously stacked the images to tease out the faintest details. Further processing in PixInsight and Adobe Photoshop revealed the intricate structures within the nebula. The resulting image showcases the delicate balance of gas and dust, sculpted by the intense radiation from the nearby massive star BD+60° 2522.

NGC 7635, also known as the Bubble Nebula, is a testament to the dynamic interplay between stars and their surroundings. This image is a tribute to the beauty and complexity of the universe, inviting viewers to ponder the mysteries of the cosmos."

Technical Details:

Object: NGC 7635 (Bubble Nebula)
Location: Desert Bloom Observatory
Date: June 21, 2025
Exposure: 20 x 900 seconds
Processing: Deep Sky Stacker, PixInsight, Adobe Photoshop

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 Pro Wifi Camera Controller

Optolong- L-Pro 2” multiband Pass Filter


Dew Heater Astrozap

Dew Shield - Celestron

Samsung Cellular Phone

Memory Card

Stacked in Deepsky stacker, image processed in PI and PS.