2820
In the second century , it was included in Ptolemy 's 48 constellations , and is counted among the 88 modern constellations .
 person: Ptolemy
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 person: Ptolemy