76845
In 2005 , the asteroid 87 Sylvia was discovered to have two satellites , making it the first known triple system ( also called " trinary minor planets " ) .
 87 Sylvia
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 87 Sylvia