Topic - 2 : The Solar System

The Solar System

Solar System :- It is gravitationally bound arrangement of the Planets and their moons that orbit round the Sun, together with smaller bodies in the form of asteroids, meteoroids, and comets forms a Solar system.

Planets : A Celestial body moving in a elliptical orbit around the Sun is known as a planet. These planets do not have their own heat and light, and the only source is by the light of the stars.

Planets have adequate mass for its self - gravity to tame inflexible powers with the goal that it accepts a hydrostatic equilibrium / harmony, almost round shape, and also has cleared the area around its orbit.

There are 8 planets in our solar system they are,

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune

The planets of our Solar system are distinct in two parts :-

(i) Planets of the internal circle [as they lie between the sun and the belt of  asteroids (space rocks)] or the inner planets or the terrestrial planets (which means earth-like as they are comprised of rock and metals, and have generally high densities).

(ii) Planets of the external / outer circle or outer planets or the Gas Gaint planets or the Jovian planets  -- which means Jupiter - like.

Planets with rings: Jupiter, Saturn, and Uranus have rings around them – belts of little flotsam and jetsam i.e., small debris.

Internal / Inner planets: Mercury, Venus, Earth, and Mars.

External / Outer planets: Jupiter, Saturn, Uranus and Neptune.

Jovian planets are more similar to the sun than like the terrestrial / earthbound planets.

In the event that we take Jupiter, the biggest planet, as the focal point of the planets of our solar system, the size of the planets decreases as we disappear from one or the other side of Jupiter (Mars being the special case i.e., exceptional).

The orbits of the planets are almost round, however numerous comets, space rocks, and Kuiper belt objects follow profoundly circular orbits.

STAR :

It is form of cosmic energy which produce heat, light, UV-rays, and different types of radiation.

Made to a great extent out of gas and plasma, a superheated condition of matter made out of subatomic particles.

Iridescence / Luminosity :- Brightness a factor of how much energy they put out.

The essential structure element of stars is Hydrogen.

SUN :

Sun is a star and is at the center of the planetary group / solar system and is comprised of incredibly hot gases / hot plasma, is a definitive source of light and heat for the close planetary system.

Gives the pulling power that ties the nearby planetary group

Contains over 99.86% of the complete mass of the Solar System [ Jupiter contains the greater part of the rest ]

The Sun is, as of now, about 70% hydrogen and 28% helium by mass all the other things i.e., metals adds up to under 2%.

 This progressions gradually over the long run as the Sun changes hydrogen over to helium in its center / core.

The Light travels at the speed of around 300,000 km each second and the light of the sun requires around eight minutes to arrive at the earth.

EARTH :

It is the third closest planet to the Sun.

It's the only planet known to have an atmosphere containing oxygen, nitrogen and oceans of water, land on its surface and only planet in which life exists.

It is the Fifth biggest planet of the solar system.

It is nearly spherical in shape i.e., It is Geoid shaped -- it is slightly flattened at the poles (earth -like shape).

It is a Blue Planet because its 70.8% surface is covered by water.

29.2% of land.

MOON : 

It is the only Earth's satellite. 

It is about 3,84,400 km away from us.

It was shaped 4.6 billion years prior around some 30–50 million years after the arrangement of the nearby planetary group.

It is always in synchronous with Earth i.e., a similar side is continually facing the Earth.

The ascent and fall of the tides on Earth are brought about by the Moon: There are two lumps in the Earth because of the gravitational force that the Moon applies; one as an afterthought confronting the Moon, and the other on the contrary side that faces from the Moon, The lumps move around the seas as the Earth pivots, causing elevated and low tides all throughout the planet.

An individual would gauge substantially less on the Moon: The Moon has a lot more fragile gravity than Earth, because of its more modest mass, so you would weigh around one-6th of your weight on Earth.

Moon Quakes :- These are brought about by the gravitational draw of the Earth. Lunar space explorers utilized Seismographs on their visits to the Moon and tracked down that little moon quakes happened a few kilometers underneath the surface, causing breaks and breaks. Researchers think the Moon has a liquid center, actually like Earth.