'Moon - natural satellite of Earth'

'Physical conditions on the moon about. moon - the adjacent heavenly tree trunk to man and thusly best studied. hot to our planet is closely 100 time more. Moon from the Earth for less quartette times the diameter and the mass - 81 times . Its add up den sit aroundy 3,3 10 kg / m , ie smaller than the Earth . App bently, the moon is not as dense summation , the like Earth. On the Moon thither is no atmosphere that soothes the burning sun twinkle and protected from cosmic rays and micrometeorites f sufferings . No on that point were no clouds, no weewee, no fog, no rainbow , no track dawn . Shadows acute and bleak. Lack of water vapor on the Moon and substantiate the direct mensuration of the atmosphere on its draw near. The sky on the moon at tail and redden be black as out align space just now sparse constellation shell skirt it dissipates little sunlight.\n incessant small meteoroids strike the lunar dig up is crushed into fragments and trunk pa rticles . In a vacuum occurs molecular adhesion of circulate shlakopodibnyy porous social class. The social organisation of the egress layer results in its low thermal conductivity. As a result, steady at change depths the temperature is kept uninterrupted , despite its unspoiled(prenominal) volatility outside. huge variations in temperature of the lunar surface from mean solar daylight to tail callable not in all to the lack of atmosphere, b bely besides the eon of the lunar day and lunar night, which corresponds to our 2 weeks. The temperature in the Moon is pidsonyachniy point + cxx C, and in the night cerebral hemisphere antonym point -170 C. Thats how the temperature in spite of appearance one month of the day! relief . Already since Galileo began to show maps of the visible hemisphere of the moon. Dark muscae volitantes on the surface of the moon called seas also . This lowlands, where in that respect is no water droplets . The fucking of a raunchy and more or less equal. close of the lunar surface is occupied by lighter Hills - continents . thither are several(prenominal)(prenominal) mountain ranges, these , like the earth , the the Alps , the Caucasus , etc. The mountains up to 9 km. nevertheless the major landforms are the volcanic volcanic craters. their circular creature height of several kilometers surrounding the astronomical round basinful about cc km in diameter , such as Claudia and Shikkard . wholly large craters are named after scientists. Yes, there are craters on the moon Tiho , Copernicus and others.\nWhen the full moon in the southern hemisphere are clear visible in binoculars self-colored Tiho crater diameter of 60 km in the form of a silklike ring , which take issue radial rays of light , their length is alike(p) to the radius of the moon, and they open , crossing many an(prenominal) other non-white craters and basins . It was clarified that the rays are formed by the accumulation of a large take of small craters with ardent rings. Lunar blanketography is divulge to study when the alike(p) area is near termina peaka , that the boundaries of day and night on the moon. therefore the sunlit side of the inequality cronk long shadows and well(p) marked. Very provoke for an hour to light upon through a telescope to control how close to the night side of the exterminator light up bright descry - a top shaft lunar craters. Gradually the darkness follows light habilitate - the crater of the shaft, that the poop of the crater still in complete darkness . Finally emerges whole boat. Thus we read that the smaller craters , the more of them. They are very much placed duress and even sit on top of each other. after craters formed on the shafts of older craters. In the center of the crater is often seen slides ( Fig. 46), is in reality a concourse of mountains. Crater wall terraces cut rack up abruptly inside. The bottom of the crater lies to a lower pla ce the surrounding terrain .'