37385
Annie Jump Cannon was the first to report its unusual spectrum , sending a plate of its spectrograph made in 1895 to Paul W. Merrill and noting its similarity to R Andromedae .
 Annie Jump Cannon, Paul W. Merrill, R Andromedae
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:
 Annie Jump Cannon, Paul W. Merrill, R Andromedae