I think it is 366.25 rotations.  The orbit around the sun accounts for one additional axis rotation to the 365.25 day-to-day rotations.  Yes? No?
-Bill G

On 9/30/2011 11:41 AM, Marcelo wrote:
I think it's a little, a very little less than 365,25 rotations. This "very little", accumulated through the centuries, has introduced an error in the seasons, which caused the Pope Gregory to correct the calendary in the 16th century. For all I know, the "very little" above is something like 3 days each 400 years.

2011/9/30 Astrovisuals <m...@astrovisuals.com.au>
Here’s an easy question:
How many times does the Earth rotate on its axis in a year (to the nearest quarter day)?
You can win lots of bets with your friends with the right answer!
 

 

* David Widdowson, ASTROVISUALS


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