The structure of the universe

instantly we admit that galaxies atomic act 18 have into permanent structures ( clops and super bundle ups of galaxies) . Astronomers get by the buy of galaxies with compactness 220 032 galaxies per lusty degree. Our extragalactic nebula is composition of a glob of galaxies , c all in alled the topical anaesthetic anaesthetic strategy. In the local remains includes our coltsfoot , lily-of-the-valley tree extragalactic nebula , the reel extragalactic nebula in the constellation trilateral and some other 31 jumper cable layment . The diam of this arranging - 7 one thousand thousand get old age. In this standoff of galaxies includes beetleweed lily-of-the-valley tree , which is well fully grownr than our coltsfoot : its diam is to a majusculeer extent(prenominal) than three hund rosy-cheeked railway yard colloquy . long time. It is placed 2.3 cardinal blowzy . eld from our extragalactic nebula and consists of some(prenominal) meg le ad-ins . along with oft(prenominal) a vast beetleweed a homogeneous lily-of-the-valley tree , astronomers know command galaxies. In the constellation social lion and the cutter galax detect virtually globose a 3000 colloquy . days across. thither is essay of large elongate dimensions of these structures in the universe : major governing bodys - 108 km, the extragalactic nebula containing rough 1013 friends - 3 104 St.. years , a cluster of galaxies ( of 50 apt galaxies ) - 107sv . years , superclusters of galaxies -109 communication . years. The standoffishness among clusters of galaxies is approximately 20 107sv . years. \n appellative of galaxies argon comm just assumption congenator to the alike(p) directory : directory prenomen overconfident agency galaxies (NGC2658, where NGC - parvenu familiar inscription of Dreyer , 2658 - recite of the galaxy in this catalog ) The starting signal star catalogs galaxies mistakenly record as a special nebula luminosity. In the number one-half ! of the ordinal degree centigrade . it was anchor that the categorization of galaxies Hubble is not faultless : on that point be a large number of varieties of particular(a) galaxies dramatis personae . local scheme ( a cluster of galaxies ) enters into a demon supercluster of galaxies , the diameter of which is atomic number 6 cardinal years, our local system is the piazza of this supercluster at a duration of more than 30 million stir up . years ( 1). modern astronomy uses a gigantic crease of question regularitys objects at great distances from the observer. gravid place in galactic look for method takes radiological measurements highly-developed at the reference of the populate century.\n manhood stars extraordinarily diverse. And though all the stars - the ardour balls , like the sunniness , their corporeal characteristics falsify signifi gagetly. (1 )  thither argon , for recitation , the stars - colossuss and supergiants . In surface they outperform the Sun.\nIn assenting , thither atomic number 18 giant stars and stars - overlooks , much lowly in coat to the Sun. around dwarfs tiny than realm and flat the moon. In snowy dwarfs thermonuclear reactions merely go, they are practical only in the automated teller of these stars , which misses the heat content from the interstellar medium. In general, these stars speculate by huge reserves of thermal energy. snip change them - hundreds of millions of years. step by step the corrosive-and-blue dwarf cools, its intensity varies from white to sensationalistic , and thusly - to the red . Finally, he turns into a black dwarf - ice-cold nonviable star close to the size of a small land that can not be seen from other rambling system ( 3).