Polaris, known as the North Star, is a triple-star system located 433 light-years from Earth. The primary star, Polaris A, is a yellow supergiant and a Cepheid variable, with two companions. Although it appears singular, Polaris is a complex system, offering astronomers a tool for measuring cosmic distances. This article shows how it appears in an 8-inch SCT telescope under suburban skies.
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The Garden Astronomer 