28215
This is a Be star with a stellar classification of B6 " IVe , matching the spectrum of an aging subgiant with a circumstellar disk of ionized gas .
 Be star
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:
 Be star