Download Our Solar system has got 8 planets and Mercury is one of them

Our Solar system has got 8 planets and Mercury is one of them. Mercury is the
nearest planet to the Sun and the smallest planet in our Solar system. This planet is
coated with stones and craters. On the Mercury there is no atmosphere and oxygen
too. Mercury is similar in appearance to the Moon it is heavily cratered, has no
natural satellites and no substantial atmosphere. However, unlike the moon, it has a
large iron core, which generates a magnetic field about 1% as strong as that of the
Earth. Surface temperatures range from about −183 °C to 427 °C. The English name
for the planet comes from the Romans, who named it after the Roman god Mercury.
Mercury is even smaller—albeit more massive—than the largest natural satellites in
the solar system, Ganymede and Titan.
This planet is the fastest planet in our Solar system because its orbit around the sun
last only 88 days, but its rotation around axis is very slow. Mercury is one of four
terrestrial planets and is a rocky body like the Earth. Mercury's core has higher iron
content than that of any other major planets in the Solar System.
Something about Mercury:
Semi -major axis 57 909 100 km
Orbital period 87.969 1d
Mean radius 4879,4 km
Sidereal rotation period 58.646 day
http://sk.wikipedia.org/wiki/Merk%C3%BAr
http://en.wikipedia.org/wiki/Mercury_(planet)