Zeta Ophicuchi is a star 20 times more massive than the Sun and is moving very fast, at 24km/s, which is relatively rare since there are currently 16 of them in our galaxy.
This can be explained by the fact that it probably originally formed a binary system with a much more massive star. When this became a supernova, the explosion propelled Zeta Ophiuchi.
The envelope that surrounds it is due to the shockwave between the star, which compresses and heats the dust in the stellar medium. Its shape strongly resembles a bird.
This image was awarded AAPOD2 ( 25th june 2023)
https://www.aapod2.com/blog/jef4lhpw7rquczlcza87nupa102yvx*********************************************************
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