Cosmic Structures in the Sh2-115 Region

Narrowband image of Sh2-115 showing glowing hydrogen, oxygen, and sulfur filaments across the Cygnus region.

Image Title: Cosmic Structures in the Sh2-115 Region

Copyright: Marty McCormack

Date image was taken: September 26, 2025

Location: Ireland (Dublin City and Co.Cork)

Data Acquisition Method: Personal Telescope Setup

Description and Details: This image shows Sh2-115 and its neighboring emission structures, located in the constellation Cygnus, approximately 7,500 light-years away.
The nebula is part of a large H II region, where ionized hydrogen glows under the intense ultraviolet radiation of nearby hot, massive stars. The golden filaments trace regions rich in sulfur, while the bluish areas highlight oxygen emissions, revealing the chemical diversity of the interstellar medium. Intricate dark lanes of dust cut through the luminous gas, marking dense regions that may serve as future stellar nurseries. Together, these features illustrate the complex interactions between stellar winds, radiation, and molecular clouds in shaping the morphology of emission nebulae.

Ha (7nm) - 100x10m
Oiii (3nm) - 70x10m
Sii (3nm) - 38x10m
Quintuplet Flatfield APO Scope
ZWO 2600MM Pro Camera
Skywatcher HEQ5 Mount

Name: Martin McCormack

Website or Facebook Profile: https://www.flickr.com/photos/cosmic_based_lifeform/

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The Large Magellanic Cloud in HLRGB and HDR