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Indian History and Geography

  • Date Submitted: 01/05/2013 11:53 PM
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GENERAL KNOWLEDGE
LATEST STUDY MATERIALS WITH KEY POINTS

THE UNIVERSE
SOLAR SYSTEM - STATISTICS
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
Average distance
to the Sun
Diameter
Period of revolution
Period of rotation
(2) VENUS

Diameter
Period of revolution
Period of rotation

:

It is the planet nearest to
the earth.

:
:
:
:

57.6 Million Kms.
4,849.6 Kms.
88 days
58 days 15 hrs 30 mts. 34
sec.

:

It is also known as the
Morning Star or the
Evening Star. It is the
brightest of all the
planets.
12,032 Kms.
225 days
243 days 14mts.

:
:
:

(3) EARTH
Equatorial diameter
Polar diameter
Distance from the Sun
Period of revolution

:
:
:
:

Period of rotation

:

12,756 Kms.
12,714 Kms.
149,597,900 Kms.
365 days 5 hrs, 48 mts,
45.51 sec.
23 hrs 56 mts. 4.09 sec.

(4) MARS
Diameter
Distance from the Sun
Period of revolution
Period of rotation

:
:
:
:

6,755.2 Kms.
225.6 Million Kms.
687 days
24 hrs 37 mts. 22.663 sec.

(5) JUPITER

:

This is the largest planet
in the solar system.
141,968 Kms.
772.8 Million Kms.
11.9 years
9 hrs 50 mts. 30 sec.

Diameter
Distance from the Sun
Period of revolution
Period of rotation
(6) SATURN

:
:
:
:
:

Diameter
Distance from the Sun
Period of revolution
Period of rotation

:
:
:
:

It was discovered by
Galileo.
119,296 Kms.
1,417.6 Million...

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