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2. Outline of the Solar System - Wikipedia

   en.wikipedia.org/wiki/Outline_of_the_Solar_System

   Solar System – gravitationally bound system comprising the Sun and the objects that orbit it, either directly or indirectly. Of those objects that orbit the Sun directly, the largest eight are the planets (including Earth), with the remainder being significantly smaller objects, such as dwarf planets and small Solar System bodies.

3. Solar System - Wikipedia

   en.wikipedia.org/wiki/Solar_System

   The outermost region of the Solar System is the theorized Oort cloud, the source for long-period comets, extending to a radius of 2,000–200,000 AU. The closest star to the Solar System, Proxima Centauri, is 4.25 light-years (269,000 AU) away. Both stars belong to the Milky Way galaxy.

4. Deferent and epicycle - Wikipedia

   en.wikipedia.org/wiki/Deferent_and_epicycle

   The deferent/epicycle models worked as well as they did because of the extraordinary orbital stability of the solar system. Either theory could be used today had Gottfried Wilhelm Leibniz and Isaac Newton not invented calculus. [20] According to Maimonides, the now-lost astronomical system of Ibn Bajjah in 12th century Andalusian Spain lacked ...

5. Numerical model of the Solar System - Wikipedia

   en.wikipedia.org/wiki/Numerical_model_of_the...

   In essence this mathematical simulation of the Solar System is a form of the N-body problem. The symbol N represents the number of bodies, which can grow quite large if one includes the Sun, 8 planets, dozens of moons, and countless planetoids, comets and so forth.

6. Wikipedia : Featured topics/Solar System

   en.wikipedia.org/.../Solar_System

   The Solar System is a gravitationally bound system consisting of the Sun and the celestial bodies that orbit it. After the Sun, the largest objects in the Solar system are the eight planets, consisting of the four gas and ice giants as well as the four terrestrial planets .

7. Inferior and superior planets - Wikipedia

   en.wikipedia.org/wiki/Inferior_and_superior_planets

   In the Solar System, a planet is said to be inferior or interior with respect to another planet if its orbit lies inside the other planet's orbit around the Sun.In this situation, the latter planet is said to be superior to the former.