Solar System

9 items English by Blaxi

Context help for the planets of the Solar system. Library consists of 8 planets of the Solar System plus the Sun. All items bear basic information about planet, have image and are linked to Wikipedia. See table of contents.

Tagged as #science #astrology #planets #solarsystem

Sample text

The Solar System formed 4.6 billion years ago from the gravitational collapse of a giant interstellar 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, are terrestrial planets, being primarily composed of rock and metal. The four outer planets are giant planets, being substantially more massive than the terrestrials. The two largest, Jupiter and Saturn, are gas giants, being composed mainly of hydrogen and helium; the two outermost planets, Uranus and Neptune, are ice giants, being composed mostly of substances with relatively high melting points compared with hydrogen and helium, called volatiles, such as water, ammonia and methane. All planets have almost circular orbits that lie within a nearly flat disc called the ecliptic.

Table of contents

Item name Phrases
Earth Earth   The Earth  
Jupiter Jupiter  
Mars Mars  
Mercury Mercury  
Neptune Neptune  
Saturn Saturn  
Sun Sun   The Sun  
Uranus Uranus  
Venus Venus