60866
If the solar year is defined as a tropical year , then a lunisolar calendar will give an indication of the season ; if it is taken as a sidereal year , then the calendar will predict the constellation near which the full moon may occur .
 tropical year, season, sidereal year, constellation, full moon
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:
 tropical year, season, sidereal year, constellation, full moon