Rosette Nebula with Sulfur Extensions from Nyon
Image Title: Rosette Nebula with SII extensions
Copyright: Carlos Burkhalter
Date image was taken: January 13, 2025
Location: Nyon, Switzerland from my Rooftop
Data Acquisition Method: Personal Telescope Setup
Description and Details: This image of the Rosette Nebula focuses on preserving and revealing the very faint outer structures, with a particular emphasis on the SII extensions, which turned out to be the main processing challenge.
While Hα provides a strong structural backbone and OIII dominates the inner regions, the SII channel reveals large-scale, diffuse features that add depth and complexity to the nebula. A significant part of the processing work was dedicated to extracting these subtle SII extensions without compressing the dynamic range or overwhelming the overall color balance.
Final integration
• Hα 2.5 nm: 35 × 600 s
• OIII 2.5 nm: 50 × 600 s
• SII 2.5 nm: 64 × 600 s
Total integration: 25 hours
Name: Carlos Burkhalter
Email: c.burkhalter04@gmail.com
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AAPOD2 Title: Rosette Nebula with Sulfur Extensions from Nyon
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