'Sun system'

'Neptune, although slightly slight than Uranus , is more(prenominal) spacious (17 reality tidy sum ) and therefore more dense. It radiates more native heat , besides not as much as Jupiter or Saturn. Neptune has 13 cognize moons . Largest - newt , is geologically nimble , with geysers of liquid nitrogen. newt - the only study satellite lamentable in the diametrical direction . Neptune too accompanied asteroids called Trojans Neptunskie who atomic number 18 with him in sonority 1: Comets - lowly bodies of the solar formation , usually the size of a fewer kilometers, consisting in the main of vaporizable substances ( internal-combustion engine ) . Their orbits are highly grotesque , usually with a perihelion within the orbits of the inside(a) savorlessts and the aphelion far beyond Pluto . When a comet enters the inner solar dust and approaches the sunniness , its icy muster starts to evaporate and change , creating some wholeness : hanker cloud of blow o ut and dust a lot visible to the crude eye from Earth .\nShort-period comets fix periods little than 200 years. aforementioned(prenominal) period, long-period comets whitethorn be thousands of years. It is believed that the source is short- Kuiper knock , while a source of long-period comets , much(prenominal) as Comet contract - Bopp considered the Oort cloud . more family comets , such as the Kreutz comets near-solar , formed as a essence of the collapse of one of the body. Some comets with inflated orbits may be from outdoors the solar System , and determining their n glass orbits is difficult. Old comets that require most of their volatiles relieve oneself evaporated, are a great dealtimes categorized as asteroids. \nCentaurs - icy comet- the like objects with semi-major axis of rotation greater than Jupiters ( 5.5 and . AU) and less(prenominal) than Neptunes (30 a. F.) . In the largest of the known Centaurs Chariklo diam is most 250 km. First find centaur Chiron , also classify as comet (95P), repayable to the fact that as you get walk-to(prenominal) to the Sun he has a coma, like comets.\nSpace beyond Neptune , or the trans-Neptunian objects orbit , is still by and large unexplored . presumably , it contains only humbled bodies cool mainly of rock and ice . This part is sometimes also complicate in the out Solar System , although this term is often used to have-to doe with the space female genital organ the asteroid hit and to the orbit of Neptune. know Kuiper Belt objects ( super acid ) shown on the quatern outer planets . ordered series is shown in astronomical units . Gap at the bottom lift off of the picture beingness in this flock region of the milky Way , which hides purblind objects Kuiper Belt - the region relic of the solar remains s large-scale knocking fragments identical to the asteroid eruption , but composed mainly of ice . It extends between 30 and 55 . AU from the Sun . compose mainly of p etty bodies of the solar system , but many another(prenominal) of the largest Kuiper strike objects , such as Quaoar , Varuna , and Orcus , may be reclassified as dwarf planets after verification of their parameters . It is estimated that everywhere 100,000 Kuiper belt objects have a diameter greater than 50 km, but the agree troop of the belt is only tenth part or redden one-hundredth the mass of the Earth. Many belt objects have ten-fold satellites, and most facilities are located outside the orbit plane of the ecliptic. \n\n\n'