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Photometric follow-up observations were taken on February 16 , 2008 using the James Gregory Telescope ( JGT ) in Scotland , which took 1047 exposures of the star , although the last twenty images taken were obscured by cloud cover and were discarded .
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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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