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It has expanded to 11 times the Sun 's radius and is radiating 55 times as much luminosity as the Sun from its outer atmosphere at an effective temperature of 4,789 K. This heat gives it the orange-hued glow of a K-type star .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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