Saturday, 2 November 2013

neptune

origin of name :

the roman god of sea 

length of year :
164 earth years

position from sun :
8th

relative size:
4th biggest

unlike the other giants , some of its rings are incomplete arcs .This planet generates heat of its own and this powers its dramatic weather systems
Triton is the largest moon of the planet  Neptune, discovered on oct 10,1846,by english astronamerWilliam . It is the only large moon in theSolar System with a retrograde orbit, which is an orbit in the opposite direction to its planet's rotation

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