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Zeta Andromedae

9/3/2026

Zeta Andromedae

Zeta Andromedae, officially named Shimu, is a binary star system in the northern constellation Andromeda. It is visible to the naked eye with an apparent visual magnitude that varies from 3.92 to 4.14 over the course of its 17.7 day orbit. Based on parallax measurements, it is located at a distance of approximately 181 light-years from the Sun. The system is drifting closer with a heliocentric rad

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Zeta Andromedae, officially named Shimu, is a binary star system in the northern constellation Andromeda. It is visible to the naked eye with an apparent visual magnitude that varies from 3.92 to 4.14 over the course of its 17.7 day orbit. Based on parallax measurements, it is located at a distance of approximately 181 light-years from the Sun. The system is drifting closer with a heliocentric radial velocity of −24.4 km/s.

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This article is an automated import of the Wikipedia article "Zeta Andromedae", available at https://en.wikipedia.org/wiki/Zeta_Andromedae . Text is licensed under CC BY-SA 4.0.