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Brighter starsScienceDaily
•79% Informative
Georgia State University's Center for High Angular Resolution Astronomy (CHARA) Array has identified new details about the size and appearance of the North Star , also known as Polaris .
Polaris gets brighter and fainter periodically as the star's diameter grows and shrinks over a four-day cycle.
The presence of spots on the surface of Polaris might be linked to a 120-day variation in measured velocity.
The Orbit and Dynamical Mass of Polaris: Observations with the CHARA Array. The Astrophysical Journal , 2024 ; 971 ( 2 ): 190 DOI: 10.3847/1538-4357 /ad5e7a Cite This Page:.
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