Researchers have created the first computer-generated three-dimensional model of the Cat’s Eye Nebula, revealing a pair of symmetric rings encircling the nebula’s outer shell. The rings’ symmetry suggests they were formed by a precessing jet, providing strong evidence for a binary star at the center of the nebula. The study was led by Ryan Clairmont, who recently completed secondary school in the United States, and is published in Monthly Notices of the Royal Astronomical Society.
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Source: Phys.org