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Extreme Negative Polarisation of New Interstellar Comet 3I/ATLAS

Zuri Gray, Stefano Bagnulo, Galin Borisov, 2025. arXiv.

Deep, narrow negative polarisation branch: minimum -2.7% at 7 deg phase, inversion angle 17 deg, unprecedented among asteroids and comets.

MYS0DFPTE25MVWR · mystery · click to copyM3I/ATLASPreprint0

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Cite it

Gray, Z., Bagnulo, S., & Borisov, G. (2025). Extreme Negative Polarisation of New Interstellar Comet 3I/ATLAS. arXiv. https://arxiv.org/abs/2509.05181
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