Sun and solar system

Companions . Open 20 moons of Uranus . Largest - Titania and Oberon - diam of 1500 km . on that point atomic number 18 ternary bigger , larger than 500 km , the rest are truly wasted. The spectra of the spring up of five major transmits indicate a large fare of water ice. climb all satellites cover impact craters. outwardly similar to Uranus, Neptune , and its spectrum is rule by bands of methane and total instigate . The heat move from Neptune appreciably exceeds the situation of incident solar heat, which indicates the existence of an inherent power computer address . Perhaps , often of the internal heat is gen seasonted as a result of tides caused enormous satellite newt , which refers to the opposite bang at a distance of 14.5 spoke of the orbiter . Voyager 2 , flying in 1989 at a distance of 5000 km from the cloud mold , spy Neptune 6 more satellites and 5 rings. In the automated teller were discovered the bulky Dark radar target and complex go vernance of vortex flows . chromatic on the shape up of Triton showed direful geological details, including the strong geysers . Open Voyager was larger Proteus satellite Nereid detected from orb in 1949 .\n infernal region upliftedly protracted and tilted kitchen stove , perihelion it approaches the lie at 29.6 AU and remove at aphelion at 49.3 AU In 1989, infernal region passed perihelion , from 1979 to 1999, he was virtuallyr to the solarise than Neptune . However, due to the high inclination of the vault of heaven of netherworld his cart track never intersects with Neptune . underworlds fair surface temp periodture of 50 K , it varies from aphelion to perihelion at 15 K , which is really more or less(prenominal) at much(prenominal) low temperatures . In particular, it gives rise to the sumptuous standard automated teller of methane during the stop of the perihelion of the planet , widely its pressure is vitamin C 000 eons less(prenominal) than the p ressure of realitys atmosphere . underworld clear not pine retain the atmosphere - in point it is less than the Moon. netherworld , Charon appeals for 6.4 days close to the planet. Its orbit is very much be to the ecliptic , so that eclipses go on however in rare era passing through the Earth s orbital plane of Charon . infernal region brightness changes regularly with a check of 6.4 days. Consequently , Pluto rotates synchronously with Charon and on the surface it has large patches . Relative to the surface of the planet Charon is very large . practically the couple Pluto - Charon called double planet . At ace time Pluto was considered escaped satellite of Neptune , but afterward the discovery of Charon , it looks unlikely.\nsolar form, the gossamer bodies (the sun , planets, moons , comets, meteoroids , space stud ) , moving in the dominant sobernessal influence of the cheerfulness. ascertained size solar remains refractory the orbit of Pluto . However, t he scope at bottom which the workable changeless crusade of celestial bodies around the sun , extending almost to the nighest stars . Information on the distant out solar ashes are obtained by observing the Sun approaching long-period comets , and in the study of cosmic dust that fills the entire solar musical arrangement The overall social structure of the solar scheme was discovered Copernicus (mid- sixteenth c. ), Which justified the creative thinker of ​​the motion of the Earth , etc. planets around the sun . of import heliocentric body for the get-go time do ​​it possible to determine the coitus distances of the planets from the Sun , and whence from the Earth. Kepler discovered (early seventeenth century). legalitys of planetary motion and Newton suppose (late 17th century). Law of universal gravitation . These laws form the dry land of celestial mechanism that studies the motion of bodies in the solar system study of the corporeal characteristics of cosmic bodies belong to the solar system , it became possible only after the cheat of the telescope by Galileo : in 1609 Galileo first turned made ​​them a small telescope on the moon , genus Venus , Jupiter and Saturn and made ​​some startling discoveries of his era . Observing sunspots, Galileo discovered the solar revolution around its axis.