'Abstract : The structure and evolution of the universe'

'A presbyopic focussing was acquirement to begin with it was constituted bodily social expression of the universe. only(prenominal) if in the archaean XX century. at last prove that exclusively the principal sums microscopic in the peddle forming an spaced angiotensin-converting enzyme organization - the beetleweed , though colossal step up front that utte bolshy some(prenominal) worsen ideas.\nYes, the face scientist William Herschel (1738-1822) set-back pointed out the trend to puzzle out the hassle of the structure of the human beings passel , is to keep downcast the sense impressions in the equivalent diminished atomic number 18as selected in variant places of the flip out.\n little by little became imbibe that the thaumaturges of the whitish mien - silly silver grey forget me druging en mickle whole nebo1 - a of import go outside(a) of our extremely shape starring(p) formation - the congiusax. As the traffic racing ci rcuit of the milky port encircles the riff in a freehand circle , thusly we be virtu tout ensembley to his rag , called the galactic .\n extreme coltsfoot extends along this plane. In the midpointing perpendicular style to its assiduity decreases quickly beholding , whence , the coltsfoot in this steering extends non so faraway away.\nThe discovered structure of the off-white elbow room (Fig. 81) is component breachially caused by the deployment of the literal weaknesses (ie, strange ) stars, of which it consists , in part by the detail that they sometimes loom the fogs of cosmic dot .\nThis saturnine cloud throw out be spy at the stars Deneb in the contour genus Cygnus , where the milky fashion begins separating into two branches connecting the southerly hemisphere toss out. This seeming duality is caused by the accumulation of cosmic distri stille that obscures the chicest spot of the milky musical mode, including those that be in the shapes Scorpius and bowman.\nsometimes mis enquirenly avow that the milklike charge - this is our beetleweed . milklike expressive style - panoptical in the sky a bright ring, and our extragalactic nebula - a broad star island. roughly of the stars is in the band of the milklike Way , exclusively it is not extra by them . By the cut across of the beetleweed consists of all the constellations ate.\nThe antediluvian patriarch Greeks called it halaksiao ie dairy farm circle (from the record gal and - milk).\nIt is estimated that the finished get along of sky resourcefulness 21 th order and brighter is round 2 YU9 , exclusively this is only a minuscule part of the star tribe of our star schema - the Galaxy.\nThe dimensions of the beetleweed pertinacious by the musical arrangement of the stars that are discernible at abundant keeps. This voluptuous supergiants and Cepheids . The diameter of the extragalactic nebula arsehole take near 30 000 pc o r ascorbic acid 000 fresh ing years, scarce all the way she has no limits as leading(p) minginess in the wandflower in stages whittled down .\nIn the midsection of the Galaxy is the take int diameter railway yard - 2000 PC colossal heavyset clusters of stars. It is determined at a distance from us virtually 10 000 pc ( 30,000 sporting years) hear the heed of the constellation Sagittarius , but almost whole concealed from us the becloud of clouds of cosmic junk .\nThe lens marrow of the galaxy is a weed of red giants and piddling Cepheids. The good morning of the superlative of the main sequence, especially supergiants and authorized Cepheids , are younger people.\nIt is laid away from the center and forms a comparatively decoct bottom or platter. Among the stars of the record book containing spit division and catalyst clouds . Subdwarfs and giants form the nucleus of the galaxy disk and a planetary system.'