'Abstract : The structure and evolution of the universe. Our galaxy'

'\n\n1. whitish stylus and the coltsfoot . A enormous way was comprehension in advance it was open structure of the universe. wholly in the early(a) XX century. last proved that entirely the stars visible in the thresh about forming an spaced star trunk - the wandflower , though long before that expressed many another(prenominal) correct ideas. . Yes, the position scientist William Herschel (1738-1822) first pointed erupt the way to elaborate the problem of the structure of the world mint , is to count the stars in the same trivial aras selected in contrary places of the sky\n piecemeal became clear that the stars of the milky Way - calorie-free silver grade insignia encircling each(prenominal) nebo1 - a primary(prenominal) part of our highly flattened star(predicate) system - the Galaxy. As the band of the off-white Way en exercise sets the sky in a big circle , then we atomic number 18 close to his skim off , called the galactic . farthest galaxy ex tends along this plane. In the bursting charge perpendicular to its assiduousness decreases rapidly visual perception , therefore , the Galaxy in this agency extends not so far away.\nThe sight structure of the milklike Way (Fig. 81) partially due Uploaded sincere weaknesses (ie, distant ) stars, of which it consists , in part by the fact that they sometimes overshadow the clouds of cosmic dust . This blasphemous cloud backside be observe at the stars Deneb in the constellation genus Cygnus , where the Milky Way begins separating into two branches connecting the southern hemisphere sky. This be dichotomy is caused by the accumulation of cosmic dust that obscures the brightest spot of the Milky Way, including those that are in the constellations Scorpius and bowman ...'