61698
It was the second and last asteroid discovery by the prolific comet discoverer Horace Tuttle , on April 7 , 1862 .
 comet, Horace Tuttle
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:
 comet, Horace Tuttle