81745
The seventh catalogue and its annex use the same numbering scheme and insert new stars into the sequence using lower case letter suffixes , for example WR 102ka for one of the numerous WR stars discovered in the galactic centre .
 astronomical object: WR 102ka
Given options, please tell me the categories of all the listed entity words.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} 
 Entities: WR 102ka 
Answer:
 astronomical object: WR 102ka