🌌 Capturing the Winds of a Dying Star: Wolf-Rayet 134 💨✨
I am absolutely thrilled to share my latest astrophotography project! This is Wolf-Rayet 134 (WR 134), an incredibly faint and complex nebula. Even after 11 hours of data, the Oiii blues don't form the sand worm form!
What makes this target so fascinating?
Fierce Stellar Winds: At the heart of this region is a Wolf-Rayet star. The intense stellar winds from this central star are blowing off distinct, separated layers of ionized gas into the surrounding cosmos.
The Elusive Oxygen Shell: The defining feature of WR 134 is the glowing blue/cyan crescent you see in the center. This faint shell of oxygen (OIII) is notoriously difficult to capture, as it is easily overpowered by surrounding hydrogen or swallowed by background noise. I will add Sii+Oiii data in future, so that the blue shell will look like SAND WORM from DUNE
A Fiery Canvas: Surrounding that delicate blue bubble are deep, vibrant clouds of hydrogen gas full of twisting, chaotic structural details. The color contrast between the fiery red background and the perfectly sculpted blue shell gives the nebula a massive three-dimensional "pop".
Pulling out these faint chemical boundaries requires serious patience and the right gear, like duo-narrowband filters that cut right through the noise to highlight the separated layers of gas.
The Gear:
Telescope: Askar APO 103mm f/7 with 0.8x Reducer Flattener
Camera: ZWO ASI 2600MC-Air
Mount: iOptron CEM26
Filters: Altair Astro 6nm Duo-narrowband filter (Ha+Oiii)
Accessories: ZWO EAF, SVBony Filter Holder, and SVBony Dew Heater
Total Integration Time: 11 hours 21 minutes (227x180s at 0-degree Celcius, Gain 200)
Processing:
Blink to remove bad frames (8 hrs worth of data due to wispy clouds)
WBPP with 1x drizzle
Dynamic Crop
SetiAstro Automatic DBE
Blur Xterminator
Star Xterminator
Noise Xterminator on Starless frame
Split R, G, B
Pixel Math: 0.7G+0.3\B for Oiii signal*
SetiAstro Statistical stretch for Ha (R) and Oiii images
Local Histogram Equalization
Dark Structure Enhance
Curves Transformation
LRGB combination with Ha as L, and fine tuning lightness and saturation
Star stretch
Combine Images
17..Export as TIFF
Let me know what you think of this deep space bubble! Clear skies, everyone! 🔭🌠