Can anyone explain it? the one i chose is what i think is

Although I don't know for sure what is an epicycle, I think your answer is right and I would try to explain as apliable to solar systems on the Milky Way known through astronomical discoveries, conside ring just one star called "Sun" and a few distant planets describing a certain type of movement around it. I should add that the Moon describes the same type of movement around the Earth ( which is not a star), being the only natural satelite of the planet Earth, being kept around it by the circumstances created by the proportion of forces occured while moving

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but there is no

i guess you forgot putting it.