33946
Before entering the planetary region ( epoch 1950 ) , C/2007 Q3 had a calculated barycentric orbital period of ~ 6.4 million years with an apoapsis ( aphelion ) distance of about 69,000 AU ( 1.09 light-year s ) .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None