40,100 kilometers.
once a year... -_-
About once every 27 days
23 hours, 56 minutes.
it takes 271/3 days
The Earth orbits the sun once per year (which is the definition of a year).
1 year
24 hours.
The moon orbits around the Earth approximately once every 27.3 days. This period is known as a synodic month or lunar month.
Because the Earth is closest to the Sun only once per year and it happens in January. The distance varies by 2.5 million kilometres above and below the average of 149.6 million kilometres.
The Earth neither spins round the Sun nor the Moon. The Earth rotates(spins) on it own axis, top give us night and day. The Moon revolves (orbits) round the Earth once a month (Moonth). The Earth and Moon, as a binary system revolve (orbit) round the Sun once a year. The Moon making 13 orbits of the Earth in once a year.
The Earth goes round the sun once
Once. That is how a year is defined. See also: http://en.wikipedia.org/wiki/Year