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:

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 ...
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 ... 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 from now, the core of the Sun will become hot enough to ...
List Of Extreme Points Lists - Other
... history 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 ...
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/m ... thick atmosphere reflects more than 60% of the solar light it receives ...
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 not ... 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 billion years, and the Earth's orbit ...

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

    The solar system has no anxiety about its reputation, and the credit of truth and honesty is as safe; nor have I any fear that a skeptical bias can be given by leaning hard on the sides of fate, of practical power, or of trade, which the doctrine of Faith cannot down-weigh.
    Ralph Waldo Emerson (1803–1882)

    Each generation’s job is to question what parents accept on faith, to explore possibilities, and adapt the last generation’s system of values for a new age.
    Frank Pittman (20th century)

    The solar system has no anxiety about its reputation, and the credit of truth and honesty is as safe; nor have I any fear that a skeptical bias can be given by leaning hard on the sides of fate, of practical power, or of trade, which the doctrine of Faith cannot down-weigh.
    Ralph Waldo Emerson (1803–1882)