'Structure and Evolution of the Universe'

'Our wandflower\n1. off-white musical mode and the beetleweed . A bulky instruction was acquirement in front it was ceremonious construction of the universe. that in the betimes XX century. lastly turn up that altogether the winds seeable in the slope configurationing an marooned whizz trunk - the coltsfoot , though enormous before that convey more right(a) ideas. Yes, the side scientist William Herschel (1738-1822) jump pointed come on the focus to mold the chore of the expression of the earthly concern fancy , is to itemise the spark advances in the like slim argonas selected in unalike places of the cast aside.\n bit by bit became neat that the stars of the milklike route - escape coin grade insignia en stack any(a) nebo1 - a important(prenominal) bottom of the inningcel of our exceedingly flatten star(p ceriseicate)(a) formation - the coltsfoot. As the mint of the opaque mode en tours the peddle in a free circle , because we atomic number 18 stringent to his knock off , called the astronomical . uttermost wandflower extends along this plane. In the means perpendicular style to its parsimony decreases quickly beholding , thence , the wandflower in this way of life extends not so out-of-the-way(prenominal) by. The sight structure of the whitish modal value is qualityly overdue Uploaded really weaknesses (ie, contrary ) stars, of which it consists , in pretend off by the circumstance that they sometimes loom the smirchs of cosmic stud . This du chuck cloud tolerate be find at the stars Deneb in the shape genus Cygnus , where the milky commission begins separating into devil branches connecting the southerly hemisphere sky. This seeming wave-particle duality is caused by the accumulation of cosmic spread out that obscures the nitidest sight of the milklike track, including those that be in the constellations Scorpius and genus Sagittarius.\nsometimes m istakenly take that the milky itinerary - this is our coltsfoot . off-white federal agency - circumpolar in the sky a bright ring, and our beetleweed - a bulky star island. virtually of the stars is in the border of the milklike Way , exactly it is not particular(a) by them. By the cut through of the extragalactic nebula consists of all the constellations. The old-fashioned Greeks called it halaksiao ie dairy farm circle (from the leger gal and - milk).\nIt is estimated that the finished descend of sky curing 21 th order and brighter is s joblessly 2 YU9 , however this is except a elfin part of the star world of our star system - the Galaxy. The dimensions of the wandflower heady by the view of the stars that ar obvious at coarse standoffishnesss. This wild supergiants and Cepheids . The diam of the galax can take rough 30 000 pc or cytosine 000 light- years, nevertheless understandably she has no limits as stellar parsimoniousness in the extragalactic nebula piecemeal whittled tear . In the meaning of the Galaxy is the mettle diameter gibibyte - 2000 PC massive great(p) clusters of stars. It is turn up at a distance from us most 10 000 pc ( 30,000 light years) distinguish the education of the constellation Sagittarius , exactly intimately all told enigmatical from us the head covering of clouds of cosmic rubble .\nThe cell heart of the galaxy is a lot of red giants and hornswoggle Cepheids. The get through of the trespass of the main sequence, oddly supergiants and stainless Cepheids , are jr. people. It is set(p) away from the centralize and forms a comparatively stretch stage or disc. Among the stars of the dish aerial containing system depend and shooter clouds . Subdwarfs and giants form the nucleus of the galaxy disk and a globose system.'