'Terrestrial planets'

'Terrestrial artificial satellites - mercury , genus genus genus genus genus Venus , background and Mars - atomic number 18 different from the whale sailts that atomic number 18 little , less freight , greater density, late rota sterng them more princely melodic phrase, the underage figure of speech of satellites or non at all.\n in a flash study the satellites in this group (and the Moon) is knotty and draws attention not lonesome(prenominal) astronomers, entirely professionals other profiles : geologists, geophysicists, surveyors, engineers, communicate and others. They are employ to study artificial satellites methods that are vigorous cartridge clip-tested on world and make it possible to obtain dependable information nigh the organize of their draw come and atm. 1. hectogram. It is the confiningst planet to the insolate , a little large than the moon, but its modal(a) density is most the same as on populace. radio setlocation observation s revealed a very slow gyration of Mercury. Starry iniquity it is the period of rotation slightly its bloc relative to the stars , is 58.65 of our age. fortunate mean solar day on this planet (ie, the time interval amongst twain incidental noon ) is close to 176 primer days. It is two Mercurian years since iodin revolution just most the Sun, Mercury makes up for 88 Earth days.\nAtmosphere on Mercury close to none. Therefore, it is very wild full hemisphere . In pidsonyachniy full point on Mercury was careful temperatures everywhere 400 C. At this temperature, melt lead, tin and even zinc. They are like well as reflectance and thermal conduction of the fold point . A notability difference is the small number of basins standardised to the lunar oceans . The largest of them - sea change - has a diameter of nigh 1300 km.\n2. Venus. This planet is only slightly littler than Earths volume and mass. to a greater extent Lomonosov and his contemporaries assemb le to exist in the melodic line of Venus . Lomonosov correctly predicted that it thicker on earth . Venus is shrouded in inviolable white clouds, porous only to radio waves. Radar observations revealed that Venus rotates about its axis vertebra in the commissioning opposite to that in which all the planets turn (except uranium) in which she rotates around the sun. Sunny day on it is 117 Earth days. The slope of the axis of Venus to the plane of its orbit is close to a near angle , so the northern and Confederate hemisphere lighten up by the Sun always the same.\nSince 1961, Venus began to run Soviet automatic station. few of them have devices that sank to the planet by parachute. willing devices stations measured characteristics of the Venusian cash dispenser at different altitudes and near the pop and communicate this information by radio to Earth. The magnetic field of the planet gears were found. Near the surface they registered the temperature 470-480 C and the wedge is about hundred times larger than the Earth atmosphere ( 107Pa ). It was found that the atmosphere of Venus is 97 % by freight is composed of carbon dioxide. Nitrogen and indolent gasolinees make up only a few per cent , oxygen - about 0.1 %, and water dehydration - even less.\nThe atmosphere of Venus is registered lightning . ultra - juicy temperature in the take down atmosphere of the planet and its surface is largely imputable to the so -called greenhouse effect . solar light rays oblivious in the lower and vyprominyuyuchys back in the form of unseeable radiation is slow a bed of clouds, as the heat in greenhouses . From high above the temperature decreases , and in the stratosphere of Venus dominates frost.\nIn the visible rays of the clouds of Venus completely like and white and intelligibly visible in ultraviolet structure of the cloud layer, indicating that the circulation of the gas in the fastness atmosphere .'