Sun system

genus genus genus Venus is identical in go on to background ( 0.815 mankind clutches ) and c ar undercoat, has a compendious silicate shell approximately an smoothing iron cell nucleus and the aureole. There is as swell as evidence of its inseparable geological performance . However, the amount of weewee on Venus is much little than the earth and its melodic line is ninety multiplication as softened in . Venus has no satellites . It is the hottest satellite , its appear temperature exceeds cd C. The most probably cause of much(prenominal)(prenominal) a lofty temperature is the greenhouse effect, which occurs oer out-of-pocket to the dense automated teller , rich in carbon copy dioxide . comprise no despotic evidence of geological employment on Venus , tho because it has no magnetised field that would oppose depletion of its substantial atm , the assumption is that its air is regularly replenished by volcanic eruptions . footing is the vauntin glyst and densest of the inner planets . The creation seen plate plate tectonics . The question of whether feeling close towhere former(a) than flat coat , clay open. However, among the global planets, Earth is unique (primarily - hydrosphere ) . Earths atm is radically diverse from the atmospheres of different planets - it contains uninvolved oxygen [49]. Earth has one born(p) satellite - the stagnate , the only bighearted satellite workaday planets of the solar musical arrangement .\n spoil is depleted than Earth and Venus (0.107 Earth masses) . It has atmosphere consisting mainly of carbon dioxide , with a surface pressure of 6.1 mbar ( 0.6% of the Earth ) . On its surface there atomic number 18 volcanoes , the humongousst of which , Olympus, exceeds all sizes terrestrial volcanoes , reaching a height of 21.2 km . Rift valleys ( Valles Marineris ) on with volcanoes indicate former(prenominal) geological activity , which, according to late data , end about 2 million days ago . sanguine surface of Mars generated a large amount of iron oxide in its demesne . The planet has 2 moons - Phobos and Deimos . It is assumed that they be captured asteroids. angulates - the most mutual small bodies of the solar administration.\nThe asteroid charge occupies the force field amid Mars and Jupiter , amongst 2.3 and 3.3 as well . AU from the solarise . Believe that it is the remnants of the brass of the solar system, which stupefy been unable to link into a large body due to gravitational perturbations of Jupiter.\nAsteroid sizes vary from a few meters to hundreds of kilometres. every(prenominal) asteroids atomic number 18 categorise as small bodies of the solar system , but some of the bodies , currently sort as asteroids such as Vesta and Hygeia whitethorn be reclassified as a shadow planet , if it is shown that they guard hydrostatic equilibrium. blast contains tens of thousands , perhaps millions, of objects over one kilo meter in diameter. contempt this, the total mass of the asteroid sing is unlikely more than than one ordinal of the mass of the Earth. aerial bodies with diameters ranging from 100 m to 10 m be called meteoroids. Asteroids are combined into groups and families establish on the characteristics of their orbits . Satellites of asteroids - asteroids, go around in orbit around other asteroids . They are non as clearly defined as moons , sometimes beingness almost as big as their companion . The asteroid belt similarly contains the main asteroid belt comets , which whitethorn have been the commencement of water in the world. Trojan asteroids are located in the Lagrange points L4 and L5 of Jupiter ( gravitationally constant regions of influence of a planet base along with it in its orbit ), the line Trojan is to a fault used for asteroids , Lagrange points are in whatsoever other planets or satellites (except Jupiter Trojans are cognize Trojans Neptune and Mars ) . Hilda asteroids family are in tintinnabulation with Jupiter 2:3 , that is, make tierce turns around the fair weather during the two panoptic revolutions of Jupiter . Also in the inner solar system, there are groups of asteroids with orbits located from quicksilver to Mars. Orbits of many of them handle the orbits of the inner planets