WR 134 - V1769 Cyg

This colorful shot covers a field of view about the size of the full Moon within the boundaries of the constellation Cygnus. It highlights the bright edge of a ring-like nebula traced by the glow of ionized hydrogen and oxygen gas. Embedded in the region's interstellar clouds of gas and dust, the complex, glowing arcs are sections of bubbles or shells of material swept up by the wind from Wolf-Rayet star WR 134, brightest star near the center of the frame. Distance estimates put WR 134 about 6,000 light-years away. Shedding their outer envelopes in powerful stellar winds, massive Wolf-Rayet stars have burned through their nuclear fuel at a prodigious rate and end this final phase of massive star evolution in a spectacular supernova explosion. The stellar winds and final supernovae enrich the interstellar material with heavy elements to be incorporated in future generations of stars.

Tech card: Imaging telescope: Explore Scientific 127mm ED TRIPLET APO. Imaging camera: ZWO ASI1600MM Pro-Cool. Mount: iOptron CEM60. Guiding camera: ZWO ASI290MM mini. Focal reducer: Explore Scientific 0.7 Reducer/Flattener. Accessory: ZWO EAF Electronic Auto Focuser · ZWO ASIAIR Pro · ZWO OAG · ZWO 8x 1.25" Filter Wheel (EFW). Frames: Chroma 3nm Ha: 10x600" (gain: 200.00) -20C bin 1x1. Chroma 3nm OIII: 22x600" (gain: 200.00) -20C bin 1x1. Total integration: 5.3 hours. Darks: ~30. Flats: ~30. Flat darks: ~60. Avg. Moon age: 18.13 days. Avg. Moon phase: 87.56% Bortle Dark-Sky Scale: 4.00. Temperature: 20.00. Pixel scale: 1.159 arcsec/pixel. Imaging location: Abu Dhabi desert, UAE. A re-process of my data of Dec. 3 and 4, 2020. I tried to boost the OIII channel and tried to pull out some more details.

Copyright: Wissam Ayoub