The first American spacecraft which orbited the earth was called The Mercury Friendship 7, and the astronaut was a famous person his name was John Glenn, he was a senator for many years later.
The purpose of the Mercury program was to send man into space for the first time, orbit around the Earth, find out how a person functioned in space, and to recover the astronaut and spacecraft safely.
Mercury's orbit, like all planet's, is elliptical.The eccentricity of Mercury's orbit is 0.206
Mercury
Mercury does not orbit the earth - ever!
It takes 88 days for mercury to complete an orbit.
The first person to orbit the Earth was the Soviet cosmonaut, Yuri Gagarin.
Mercury's orbit is inclined at about 7 degrees to the plane of the ecliptic, which is the plane of Earth's orbit around the Sun. This means that Mercury's orbit is tilted relative to Earth's orbit by 7 degrees.
Mercury has the shortest orbit.
Mercury's orbit around the sun is approx 364 million km long.
Mercury has the shortest orbit of all the planets because it is the closest planet to the Sun.
Mercury takes 87.97 days to orbit the Sun, and there are 24 hours in a day.