Facts of Earth | पृथ्वी

Important facts of Earth:

Earth's location in the Solar System:

 

Earth is the third nearest planet of the Sun after Mercury and Venus. According to the information so far, Earth is the only planet in the universe where  life exist. The average distance of the Earth from the Sun is about 150 million kilometres.

This distance is called the astronomical unit.

 

71% of its surface is covered by water and 29% is covered by land. It is also called blue planet.

Its surface is made up of various plates. On it, water is found in all three states (solid, liquid and Vapour).

There is a thick layer of ice on both its poles.

Its Diameter is 12756 km and its Equatorial Diameter is 12743 km.

 

Physical Features of Earth:

 

Centre Radius	6371.0 Km
Radius at Equator	6378.1 Km
Polar Radius	6356.8 Km
Circumference (on Equator)	40075.017 Km
Total Surface Area (water + Land)	510072000 Km²
Land Area	148940000   Square Km² (29.2%)
Water Covered Area	361132000 Square Km² (70.8%)
Mass	5.97237×10²⁴ kg
Gravity	9.807 m / Second²
Escape Velocity	11.186 km / Second
Rotation Time Sidereal Rotation Period	23 hours 56 minutes 4.100 seconds
Rotation Speed	1674.4 km / h (465.1 m / s)
Angle of Inclination	23 degree 26 minutes 21.4119 °

 

 Earth Rotation & Revolution

 

1.     The average distance of the earth from the sun is about 150 million kilometres.

2.     Rotation is also called stellar day  rotation while revolution is called Sidereal Year revolution.

3.     Earth rotates from west to east on its axis, which is called the daily movement of the

Earth.

4.     The Earth takes 23 hours, 56 minutes and 4.09 seconds to complete one rotation.

        The Earth rotates from west to east on its axis and at a speed of 1,674.4 km / h.

         In this way, all the objects  along with the earth rotate at a speed of 1,674.4 km/h

        Today there are no any passenger airplane flies at such a speed.

5.     Due to the daily movement of the earth, there are days and nights.

6.     Earth revolves around its axis as well as revolving around the Sun, which is called annual         revolution.

7.     Earth takes 365 days 6 hours 48 minutes and 45.51 seconds to complete one round of the Sun and it's called Sidereal Year.

        The Earth revolves around the Sun and at a speed of 107200 km / h (29.78 km / s).

        You can estimate this distance (Orbital Distance 940 million km) from this point that it takes 365 days 6 hours 48 minutes and 45.51 to do this distance and that too at a speed of 107200 km / h.

       All of us are revolving around the Sun along with the Earth at this speed.

        Humans cannot even imagine an aircraft of this speed.

8.     The average distance of the earth from the sun is about 150 million kilometers.

9.     Weather changes due to the Earth's annual motion.

10.     The Earth's axis tilts to 66.5 degrees from its orbit.

 

Earth Atmosphere

Nitrogen                     78.09%

Oxygen                       20.95%

Argon                          0.93%

Carbon dioxide            0.03%

 Neon                           0.0018%

Hydrogen                     0.001%

Helium                         0.000524%

Krypton                        0.0001%

Zenan                           0.000008%

Ozone                           0.000001

Methane                      Negligible

Our Earth is so complex. Is this not an interesting fact that:

We are all rotating counter clock wise along with the Earth at a speed of 1,674.4 km / h and

orbiting around the Sun at a speed of 107200 km / h.