moon completes one revolution around the earth in.
moon completes one revolution around the earth in?
moon
orbit of the moon





















































the moon orbits earth in the prograde direction and completes one revolution relative to the stars in about 27.32 days (a sidereal month) and one revolution relative to the sun in about 29.53 days (a synodic month). earth and the moon orbit about their barycenter (common center of mass), which lies about from earth's center (about three-quarters of the radius of earth). on average, the distance to the moon is about from earth's center, which corresponds to about 60 earth radii.
orbit of the moon
hippocamp completes one revolution around neptune every 22 hours and 28.1 minutes (0.9362 days), implying a semi-major axis, or orbital distance of , just over a quarter that of earth's moon, and roughly twice the average radius of neptune's rings. both its inclination and eccentricity are close to zero. it orbits between larissa and proteus, making it the second outermost of neptune's regular satellites. its small size at this location runs counter to a trend among the other regular neptunian satellites of increasing diameter with increasing distance from the primary.
hippocamp (moon)