16327
It is prominent in many galactic open clusters , and it is also noticeable in many intermediate-age globular clusters and in nearby field stars ( e.g. the Hipparcos stars ) .
 Hipparcos
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Hipparcos