INFO : SOLAR SYSTEM - STATISTICS
THE UNIVERSE

The solar system consists of the Sun and 9 planets revolving around it in different orbits. The statistics of the sun and the planets are given below : 

 - SUN - 

Age : About 5 Billion years
Distance : 149.8 Million Kms
Diameter : 1,38,400 Kms.
Photosphere temperature : 5,770 K
Core temperature : 150,000,000 K
Absolute visual magnitude : 4.75 
Rotation (as seen from the earth at the equator) : 25.38 days
Rotation (near the poles) : 33 days

The sun consists of 71% of Hydrogen, 26.5% Helium and 2.5% of other elements. The rays of the Sun take about 8 minutes to reach the
earth.

PLANETS

(1) MERCURY
It is the planet nearest to the earth.
Average distance to the Sun : 57.6 Million Kms.
Diameter : 4,849.6 Kms.
Period of revolution : 88 days
Period of rotation : 58 days 15 hrs 30 mts. 34 sec.

(2) VENUS
It is also known as the Morning Star or the Evening Star. It is the brightest of all the planets.
Diameter : 12,032 Kms.
Period of revolution : 225 days
Period of rotation : 243 days 14mts.

(3) EARTH
Equatorial diameter : 12,756 Kms.
Polar diameter : 12,714 Kms.
Distance from the Sun : 149,597,900 Kms.
Period of revolution : 365 days 5 hrs, 48 mts, 45.51 sec.
Period of rotation : 23 hrs 56 mts. 4.09 sec.

(4) MARS
Diameter : 6,755.2 Kms.
Distance from the Sun : 225.6 Million Kms.
Period of revolution : 687 days
Period of rotation : 24 hrs 37 mts. 22.663 sec.

(5) JUPITER
This is the largest planet in the solar system.
Diameter : 141,968 Kms.
Distance from the Sun : 772.8 Million Kms.
Period of revolution : 11.9 years
Period of rotation : 9 hrs 50 mts. 30 sec.

(6) SATURN
It was discovered by Galileo.
Diameter : 119,296 Kms.
Distance from the Sun : 1,417.6 Million Kms.
Period of revolution : 29.5 years
Period of rotation : 10 hrs 14 mts.

(7) URANUS
Diameter : 52,096 Kms.
Distance from the Sun : 2,852.8 Million Kms.
Period of revolution : 84 years
Period of rotation : 16 hrs 10 mts.

(8) NEPTUNE
Diameter : 49,000 Kms.
Distance from the Sun : 4,497 Million Kms.
Period of revolution : 165 years
Period of rotation : 18 hrs 26 mts.

(9) PLUTO
This is the coldest and smallest of all planets. It is also the most distant one.
Diameter : 3,040 Kms.
Distance from the Sun : 5,865.6 Million Kms.
Period of revolution : 248 years
Period of rotation : 6 days 9 hrs and 18 mts.

MOON : Moon is earth's satellite. Its period of rotation and Period of Revolution are the same. i.e.29 1/2 days