Fact about our Solar system

Some fact about Solar  System

Solar system 

The Solar system  is the  gravitational bound system of all the matters in it. All the star , sun and all planet which fall in it comes under the Solar system. Every solar system considered center a star like us we considered the sun.

In our solar system mainly the Sun and 8 big plants. Sun is considered the center  of the solar system and all the planets  revolve around the sun. in our solar system there is nearly 8 lakh minor planets exist.

>Size of Universe- 93 billion light year diameter

> Size of Universe- 28 billion parsecs

> Sun is a nebula Star.

> Sun is a star and center of the solar system.

> It is the nearest star after Alpha centuri.

> Heat  is produced by Nuclear fusion.

> Its a G-type main sequence star and consists 99% of solar system.

> Its have 73% hydrogen and 25% of helium.

> Sun have diameter 84600 miles.

> Its mass is 330000 times of earth mass.

> Its surface temperature about 5778 degree k

> Its still have 5 billion years life remaining.

> Heat of sun is measured by pyrometer 

 

Planet

Our solar system  have total 8 planet.  Earlier  they were 9.  But Pluto was no more a Planet.

Order of their existence   in solar system

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

 

> Nearest planet to the Sun - Mercury

> Far most planet to the Sun- Neptune

 

>Inner planets-. Mercury, Venus, earth, mars

>Outer planets-. Jupiter, Saturn, Uranus, Neptune 

>Age of our solar system-4.5 billion years

>Mass of Earth- 5.97*10^24  kg

>Mean radius of Earth- 6373 km

> Escape velocity of Earth-11.182 km/s

> Distance between  earth and moon -384000 km

> Distance between earth and sun- 15 0000000 km

>Earth surface have 71% of water

> Earth surface have 29 % of land

>Total number of moon-181

>Total number of Asteroids-552894

> Name of our galaxy- Milky way

> Total galaxy in universe- 10^11

> Number of Dwarf planet-5

>Number of comets-3083

>Hottest planet- Venus

>Coldest planet- Neptune

 

>Planet having no satellite-   Mercury, Venus

>Name the planet having maximum satellite-  Jupiter (67)

>Name the planet which has most largest  satellite in whole solar system- Ganymede (Jupiter).

>According to size largest planet- Jupiter

 

>According to size smallest planet- Mercury

>Evening and morning star- Venus

 

>Sister planet of Earth- Venus

> Seventh planet from the sun- Uranus

>Red planet- Mars

> Number start in the universe- 10^22

 

>  Green  planet- Uranus

>  Blue planet- earth

 

> Name the planet on which 3 times more of Mount Everest mountain- nix Olympia (mars).

> Name the planet which floating in water- Saturn

 

> Mars satellite- 2( Phobos, demos).

> Titan satellite is found in Saturn planet.

 

> After Earth where life is possible- mars

> Triton and merida satellite is found in- Neptune

 

> Who discovered Neptune- John galle          

 

Satellite of each planet

> Satellite of saturn- 63

>Satellite of mercury- 0                               

> Satellite of Uranus- 27

> Satellite of Neptune-13

> Satellite of mars-3

> Satellite of Earth-1

> Satellite of venus-0

 

> Long distance between the planet is measured by Light year

> 1 Light year= 9.46 Pm 

>1 Pm= 10¹⁵  m

Recent event of our solar system

On 21 December 2020 planet Jupiter and Saturn are too closed and this event happen once in 800 years.

 

 

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