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Her is one of the smallest and faintest satellites of the Milky Way — its integrated luminosity is about 30,000 times that of the Sun ( absolute visible magnitude of about − 6.6 ) , which is comparable to the luminosity of a typical globular cluster .
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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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