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2025, February 2025 Charles Lillo 2025, February 2025 Charles Lillo

WR 8 - Rarely imaged Wolf Rayet star in HOO with RGB stars

WR 8 is a rarely imaged Wolf-Rayet star located in the southern constellation of Puppis. Wolf-Rayet stars are massive, evolved stars that undergo intense stellar winds, shedding their outer layers and enriching the surrounding interstellar medium with heavy elements. WR 8 belongs to this rare class, characterized by high surface temperatures and strong emission lines, particularly in ionized hydrogen (Hα) and oxygen (OIII).

Captured from the dark skies of Observatorio El Sauce, Chile, this image combines narrowband HOO data with RGB stars to preserve the natural colors of the field. The nebula surrounding WR 8 is shaped by powerful stellar winds interacting with previous ejecta, creating a complex structure of ionized gas. These turbulent regions are key to understanding the life cycles of massive stars and their impact on galactic evolution. The detailed exposure reveals intricate filaments and expanding shells, emphasizing the dynamic processes occurring in this rarely studied system.

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