Dawn Bringers New upcoming clan on Lineage 2 Franz Servers. With its main focus based on having fun.
 
HomeRegisterLog in

Share | 
 

 Solar System

View previous topic View next topic Go down 
AuthorMessage
taixyz1992



Posts : 261
Join date : 2010-10-10

PostSubject: Solar System   Sat Nov 13, 2010 7:32 pm

The Solar System[a] consists of the Sun and the astronomical objects bound to it by gravity, all of which formed from the collapse of a giant molecular cloud approximately 4.6 billion years ago. Of the many objects that orbit the Sun, most of the mass is contained within eight relatively solitary planets[e] whose orbits are almost circular and lie within a nearly flat disc called the ecliptic plane. 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, 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".
The Solar System is also home to two regions populated by smaller objects. The asteroid belt, which lies between Mars and Jupiter, is similar to the terrestrial planets as it is composed mainly of rock and metal. Beyond Neptune's orbit lie trans-Neptunian objects composed mostly of ices such as water, ammonia and methane. Within these two regions, five individual objects, Ceres, Pluto, Haumea, Makemake and Eris, are recognized to be large enough to have been rounded by their own gravity, and are thus termed dwarf planets.[e] In addition to thousands of small bodies[e] in those two regions, various other small body populations, such as comets, centaurs and interplanetary dust, freely travel between regions.
The solar wind, a flow of plasma from the Sun, creates a bubble in the interstellar medium known as the heliosphere, which extends out to the edge of the scattered disc. The hypothetical Oort cloud, which acts as the source for long-period comets, may also exist at a distance roughly a thousand times further than the heliosphere.


co location toronto
climber com review ratings
Back to top Go down
 
Solar System
View previous topic View next topic Back to top 
Page 1 of 1
 Similar topics
-
» Artistic Interpretation
» Explore Destiny's Solar System with Planet View
» Natural Solar and Planetary Phenomena
» Pre-WotLK System Requirements
» Tau Smart Missile System

Permissions in this forum:You cannot reply to topics in this forum
Dawn Bringers :: General :: That's Life-
Jump to: