Question

How many planets are there in our solar system describe them?

Answer 1

Planets are celestial bodies which revolves around sun many planets have moon their natural satellite.


There are total 8 planets in our solar system Pluto is consider as dwarf planet



Mercury = Distance from sun  = 57.91 million km

              =  Made up of rocks 

              =  Innermost planet in the solar system

              =  Revolves around the sun in 88 days, Average speed 105,947                        miles (170,505 kilometers) per hour.

              
              = Temperature = 801 Fahrenheit.

              = Hottest planet .

              = No moons 

              = Very thin atmosphere.
 
Venus = Distance from sun = 108.2 million km

           =  Made up of rocks 

           =   2nd planet of solar system 

           = Revolves around the sun in 225 days, Average speed 126,077                             kilometers per hour

          = Temperature = 864 degrees Fahrenheit

          = 2nd hot planet

          = No moons .

          = 96% carbon dioxide


Earth = Distance from sun = 149.6 million km

          = Made of rocks 

          =  3rd planet 

          = Revolves around the sun in 365 days and 6 hours 30 kilometers per                        second

          = Temperature = The temperature vary in different places.

          =  1 moon 

          = Not so cold nor hot .

          = Carbon-dioxide = 0.03% Oxygen = 21%

        

Mars = Distance from sun = 227.9 million km

         =   Its surface is made of a thick layer of oxidized iron dust and rocks                      of the same color.


        =   Revolve around the sun in 687 days Average speed = 86,871                                  kilometers per hour

        = 4 th planet 


       = 20 °C (293 K; 68 °F) at noon 

       = 2 moons 

       = Oxygen = 0.1% Carbon dioxide = 95.32%



Jupiter = Distance from sun = 778.5 million km

            = Made up of Hydrogen gas and helium gas.

            = Revolve around the sun in 12 years Average speed =  47,051 kilometers per hour 

           = 5 th planet 

           = minus 145 degrees Celsius temperature 

            = 67 moons 


Saturn = Distance from sun = 1.433 billion km

           = It is made up of 94% hydrogen, 6% helium and small amounts of methane and ammonia. 

            =  Time taken to revolve around the sun = 29 years Average speed                                 = 9.68 km/s

           = 6th planet 

        = -270 degrees Fahrenheit temperature 


       = 62 moons 

      

Uranus = Distance from sun = 2.871 billion km

           = Ices, like water, ammonia and methane = made from 

          = 30,687 Earth days.= time taken to revolve around the sun 
             Average speed = 24,607 kilometers per hour


          = 27 moons 

         = -357 degrees Fahrenheit = temperature 

        
Neptune = Distance from Sun =  4.495 billion km

               =  small amount water and methane = made Of 

               = Time taken to revolve = 165 years Average speed. = 19,720 kilometers per hour

            = 13 moons 

               = - 353 Fahrenheit (-214 Celsius). = temperature 


Hope it helps