(June 15, 2016 at 5:32 am)Constable Dorfl Wrote:(June 15, 2016 at 5:30 am)Alex K Wrote: In my answer, I assumed the definition of 1 year being the time the earth needs to circle the sun once and return to the previous position as seen from a nonrotating outside observer.
That's not an assumption, that's the definition.
The question did not specify an Earth year. Could be referring to a Martian year. Or a Plutonion year.