25 inches in circumference would be the largest normal (not  hydrocephalic) head.    The world record holder is Rick Walters.
Trending Now. Answers. Best Answer: 365 days, 5 hours, 49 minutes and 1.20 seconds (or 365.242375 days). The distance is not so easy; the Earth doesn't travel in a circle through space. With relation to the Sun, it does, but since the Sun is moving, the Earth moves in a helixal orbit.
Notes. 1  Our planet takes about 365 days to orbit the Sun. A full orbit has 360Â°. 2  For the Earth, the Hill radius is R H = a ( m 3 M ) 1 / 3 , {\displaystyle R_{H}=a\left({\frac {m}{3M}}\right)^{1/3},}. where m is the mass of the Earth, a is an astronomical unit, and M is the mass of the Sun.