The Earth and 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. 34sec.

(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.

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.

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