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Planets and dwarf planets of the solar system

 

Dwarf planets and planets

 Automatic translationAutomatic translation  

« A planet is a celestial body that is in orbit around the Sun, which has sufficient mass for its gravity to overcome the cohesive forces of the solid body and maintain hydrostatic equilibrium (spherical), which eliminated all body moving on an orbit close ».
This definition was approved August 24, 2006, at the 26th General Assembly of the IAU by a vote to freehand, by 400 scientists after ten days of discussions.

 

If we could look at the solar system from outside, far above the Earth's north pole, we would see the planets orbit the Sun in the opposite direction of clockwise.
We find that the disk rotation of the planets is remarkably plan, only Mercury has an inclined relative to other (7°) orbit.
But we do not notice the planets rotate on themselves. Each planets revolve around a different axis of rotation.

 

The axis tilt or obliquity is the angle between the axis of rotation of a planet and the perpendicular to the orbital plane.

Simulator, rotation and position of the planets (dynamic graphic)dwarf planets
Simulator, the
revolution of the planets...
The dwarf planet
does not clear up...
  
Frost line or ice line or snow line in the solar systemdwarf planet Haumea
Frost line
in the solar system...
Haumea collisional
and his family...
  
Oort cloudCharacteristics of Planets
Oort cloud, to
50 000 AU from the Sun...
Characteristics
of the planets...
  
Planet MarsPlanet Jupiter
Planet Mars...
 
Planet Jupiter...
 
  
Roche limitSeven Wonders of the World
Roche limit or limit
not to exceed...
The Seven Wonders
of the World...
 
Quaoar an asteroid in the Kuiper beltPlanet Earth
From Quaoar,
the sun is a distant star...
The wonder of
the solar system ...
  
The largest objects in the solar systemPluto and its satellites
The 40 largest objects
in the solar system...
Pluto system...
  
planet Neptuneplanet Mercury
Planet Neptune...
 
Planet Mercury...
 
  
Planet SaturnPlanet Uranus
Planet Saturn...
 
Planet Uranus...
 
  
Living on Mars 
Living on Mars...
 
 
 
Ceres the largest asteroidPluto, dwarf planet since 2006
Ceres the largest
asteroid...
Pluto, dwarf planet
since 2006...
  
Axis of rotation of planets or obliquityKuiper belt
Axis of rotation of
planets or obliquity...
Objects in the
Kuiper Belt...
  
planet Venusplanet Earth
Planet Venus...
 
Planet Earth...
 
  
free floating or exoplanetsmini-neptunes or gaseous dwarfs, exoplanets
Billions of
floating planets...
Mini-Neptunes
or gaseous dwarfs...
 
star
 
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