What is solar system?

  • (noun): The sun with the celestial bodies that revolve around it in its gravitational field.

Solar System

The Solar System consists of the Sun and its planetary system of eight planets, their moons, and other non-stellar objects. It formed 4.6 billion years ago from the collapse of a giant molecular cloud. The vast majority of the system's mass is in the Sun, with most of the remaining mass contained in Jupiter. The four smaller inner planets, Mercury, Venus, Earth and Mars, also called the terrestrial planets, are primarily composed of rock and metal. The four outer planets, called the gas giants, are substantially more massive than the terrestrials. The two largest, Jupiter and Saturn, are composed mainly of hydrogen and helium; the two outermost planets, Uranus and Neptune, are composed largely of ices, such as water, ammonia and methane, and are often referred to separately as "ice giants". All planets have almost circular orbits that lie within a nearly flat disc called the ecliptic plane.

Read more about Solar System.

Some articles on solar system:

List Of Extreme Points Lists - Other
... of life Faint young Sun paradox Formation and evolution of the Solar System Future of the Earth Gaia hypothesis Geologic time scale Geological history of Earth History of the Earth Timeline of ...
Stability Of The Solar System
... The stability of the Solar System is a subject of much inquiry in astronomy ... For this reason (among others) the Solar System is stated to be chaotic, and even the most precise long-term models for the orbital motion of the Solar System are ... The Solar System is stable in human terms, in that none of the planets will collide with each other or be ejected from the system in the next few ...
Timeline Of The Big Bang - Ultimate Fate of The Universe - Fate of The Solar System: 1 To 5 Billion Years
... Over a timescale of a billion years or more, the Earth and Solar System are unstable ... fields, axial tilt and atmosphere are subject to long term change and the Solar System itself is chaotic over million- and billion-year timescales Eventually in around 5.4 billion years ...
Sunshiny - Intensity in The Solar System
... Different bodies of the Solar System receive light of an intensity inversely proportional to the square of their distance from Sun ... A rough table comparing the amount of solar radiation received by each planet in the Solar System follows (from data in ) Planet distance (AU) Solar radiation (W/m²) Perihelion Aphelion maximum ... For example Venus' thick atmosphere reflects more than 60% of the solar light it receives ...
Solar System - Visual Summary
... A sampling of closely imaged Solar System bodies, selected for size and detail and sorted by volume ... Other lists include List of Solar System objects by size, List of natural satellites, List of minor planets, and Lists of comets ... Solar System Sun Jupiter Saturn Uranus Neptune Earth Venus Mars Ganymede Titan Mercury Callisto Io Moon Europa Triton Titania Rhea Oberon Iapetus Umbriel Ariel Dione Tethys Vesta ...

Famous quotes containing the words solar system, system and/or solar:

    Our civilization has decided ... that determining the guilt or innocence of men is a thing too important to be trusted to trained men.... When it wants a library catalogued, or the solar system discovered, or any trifle of that kind, it uses up its specialists. But when it wishes anything done which is really serious, it collects twelve of the ordinary men standing round. The same thing was done, if I remember right, by the Founder of Christianity.
    Gilbert Keith Chesterton (1874–1936)

    A heresy can spring only from a system that is in full vigor.
    Eric Hoffer (1902–1983)

    Our civilization has decided ... that determining the guilt or innocence of men is a thing too important to be trusted to trained men.... When it wants a library catalogued, or the solar system discovered, or any trifle of that kind, it uses up its specialists. But when it wishes anything done which is really serious, it collects twelve of the ordinary men standing round. The same thing was done, if I remember right, by the Founder of Christianity.
    Gilbert Keith Chesterton (1874–1936)