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Arcturus
Arcturus is the brightest star in the Northern Hemisphere. It is a red giant located in the constellation Bootes. It is 36.7 light years away from Earth. Its name is derived from the Greek word ‘arktos’, meaning bear. Its visual magnitude is -0.05, making it one of the brightest stars in the night sky. It is approximately 25 times the size of our Sun, and 170 times its luminosity. Arcturus is around 4 billion years old, and is about to enter its red giant phase.
