- Sun
- Planets
- Mercury
- Venus
- Earth
- Mars
- Jupiter
- Saturn
- Uranus
- satellitesUranus has 27 known moons. The first two moons ( Titania and Oberon) were discovered by William Herschel on March 13, 1787. Two more moons ( Ariel and Umbriel) were discovered by William Lassell in 1851. In 1852, Herschel's son John Herschel gave the four
- NeptuneNeptune is the eighth planet from the sun, and the outermost gas giant in our solar system. Due to Pluto's eccentric orbit, Neptune is sometimes the furthest planet from the Sun. Neptune is named after the Roman god of the sea. Its symbol is a stylized re
- satellitesNeptune has thirteen known natural satellites. The largest by far is Triton, discovered by William Lassell just 17 days after the discovery of Neptune itself. Awaiting confirmation and naming. Negative orbital periods indicate a retrograde orbit around Ne
- PlutoPluto is the ninth planet from the Sun in our solar system. Because Pluto is also the smallest planet in our solar system and has a highly eccentric orbit (which takes it inside the orbit of Neptune) there has been some debate regarding whether Pluto shou
- CharonCharon is the only known satellite of Pluto. It was discovered by astronomer James Christy on June 22, 1978 by carefully examining highly magnified images of Pluto on photographic plates taken a couple of months before and noticing that a slight bulge app
- AsteroidAn asteroid is a small, solid object in our Solar System, orbiting the Sun. An asteroid is an example of a minor planet (or planetoid , which are much smaller than planets. The asteroids are believed to be remnants of the protoplanetary disc which were nos
- Near-Earth asteroidNear-Earth asteroids (NEAs) are asteroids whose orbit intersects Earth's orbit and which may therefore pose a collision danger, as well as being most easily accessible for spacecraft from Earth. In fact, some near-Earth asteroids can be reached with muchs
- Asteroid belt
- Trojan asteroids
- Meteoroids
- Centaurs
- Comets
- Periodic comet s
- Long period comet s
- Lost comet s
- Trans-Neptunian objects
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