2007-07-14 12:45:48 · 17 answers · asked by nsflady_d2004 1 in Science & Mathematics ➔ Astronomy & Space
Roughly 366.25 rotations per year.
One day (24 hours) is slightly more than one full rotation. So there are 365.25 days per year.
That extra 0.25 is the reason we have leap years.
2007-07-14 12:51:47 · answer #1 · answered by stork5100 4 · 1⤊ 1⤋
The earth rotates 365 and a quarter times in 1 year(approx) , thus we have a leap year once every 4 years to account for this offset from the calender.
However, the offset is not exactly 0.25 of a day, it is just very slightly less.....
So the leap year still leaves the actually rotation of the earth slightly out of sink with our calender (ie' the extra day added in the leap year is just very slightly too much), so....
Once every 100 years, on the 4th year where the leap year would normally occur, it is skipped that time around, but....
This still leave the earth rotation out of sink with the calender very slightly, so...
Once every 1000 years, on the 100th year where the extra day in that leap year would be skipped, it is not skipped.
This puts our calender back into prefect sink with the Earth's rotation.
The whole process has only fully cycled twice in the calender we use.
So, the answer is: Just a very tiny bit less than 365.25 days (I don't know the exact decimal).
2007-07-14 13:37:28 · answer #2 · answered by LostSoul 2 · 0⤊ 1⤋
Gee...we really have to think about that one...
Let's see...The Earth turns once each day.
And, there are 365 and 1/4 days in a year.
So that must mean that the Earth turns 365 1/4 times in a year.
2007-07-14 14:05:17 · answer #3 · answered by zahbudar 6 · 0⤊ 0⤋
The earth rotates on its axis 365.2425 times per year with respect to the sun (taking into account leap years every four years minus three of them every 400 years), but 366.2425 times per year with respect to the stars - because as it moves in its orbit it has to turn for another 3 minutes and 56 seconds before the sun is at its noon position again.
2007-07-14 12:57:40 · answer #4 · answered by hznfrst 6 · 2⤊ 0⤋
About 365 times. There are 365 days in a year.
2007-07-14 13:40:45 · answer #5 · answered by Anonymous · 0⤊ 0⤋
I have to say, that's a very creative way of asking how many days in a year.
Every first-grader knows there are 365 days in a year (366 in leap years).
Actually, its closer to 365.25 days per year (that's why every 4 years we add 1 day to make up that extra quarter-day).
2007-07-14 14:26:15 · answer #6 · answered by Anonymous · 0⤊ 0⤋
365
2007-07-14 15:11:18 · answer #7 · answered by randomperson8413 1 · 0⤊ 0⤋
The earth rotates on its axis 365.25 times per year, or once per day. The earth revolves around the sun once per year.
2007-07-14 12:50:55 · answer #8 · answered by aviophage 7 · 1⤊ 0⤋
It turns once in 24 hours (1 day).
Therefore 365.25 times a year.
2007-07-14 12:49:42 · answer #9 · answered by Norrie 7 · 1⤊ 0⤋
The earth spins 365 "times" a year. "times" = "days" I thought they taught that in school?
2007-07-14 13:59:07 · answer #10 · answered by justask23 5 · 0⤊ 0⤋