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flag Scientists at Georgia State University's CHARA Array found large bright and dark spots on Polaris, a larger-than-expected Cepheid variable star.

flag Scientists at Georgia State University's CHARA Array captured high-resolution images of the North Star, Polaris, revealing large bright and dark spots that change over time. flag Polaris, a Cepheid variable star, has a heavier mass than previously estimated, and its size is 46 times larger than the Sun, with a diameter of 46 solar diameters. flag The CHARA Array's observations provide the first glimpse of a Cepheid variable's surface.

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