'Our Galactic'

'\nMlechnyy Put i struktura Galaktiki. Uzhe k nachalu nashego veka bylo izvestno, chto te zvezdy, kotoryye nablyudayutsya nevooruzhennym glazom ili v teleskop, obrazuyut v prostranstve splyusnutyy zvezdnyy criminal record gromadnogo razmera. My nakhodimsya vnutri etogo dish antennaa i poetomu vblizi yego ploskosti vidim ochen mnogo dalekikh zvezd. Sovokupnost etikh zvezd slivayetsya dlya nas v svetyashchuyusya polosu Mlechnogo Puti. Ranshe dumali, chto Solntse raspolozheno vblizi tsentra zvezdnoy sistemy Galaktiki, potomu chto yarkost Mlechnogo Puti primerno odinakova vo vsekh napravleniyakh, khotya v nem i sushchestvuyut otdelnyye bol meat yarkiye uchastki. Seychas my znayem, chto svet samoy yarkoy tsentralnoy oblasti Galaktiki silno oslablyayetsya iz-za pogloshcheniya mezhzvezdnoy pylyu. Lish nablyudeniya v infrakrasnykh luchakh, kotoryye ispytyvayut mensh mall pogloshcheniye, pozvolili uvidet naibol centre p covernuyu tsentralnuyu oblast nashey Galaktiki. Ona raspolozhena v soz vezdii Streltsa.\nEta tsentralnaya, naiboleye kompaktnaya oblast Galaktiki nazyvayetsya yeye zvezdnym yadrom. Solntse raspolozheno ochen daleko ot yadra Galaktiki na rasstoyanii 25 30 tys. svetovykh let (810 kpk) vblizi ploskosti simmetrii zvezdnogo plougha, tolshchina kotorogo sostavlyayet neskolko tysyach svetovykh let. Yadro nakhoditsya v tsentre zvezdnogo, recorda Galaktiki.\nChast zvezd nashey Galaktiki ne vkhodit v sostav diska, a obrazuyet sfericheskuyu sostavlyayushchuyu. Eti zvezdy kontsentriruyutsya ne k ploskosti diska, k yadru Galaktiki. magnetic platter i sfericheskaya sostavlyayushchaya osnovnyye elementy struktury nashey Galaktiki. Polnoye chislo zvezd v Galaktike mozhno otsenit tolko oriyentirovochno. Ono sostavlyayet neskolko soten milliardov. Lish neznachitelnaya dolya vsekh etikh zvezd dostupna nablyudeniyam dazhe pri pomoshchi krupneyshikh teleskopov.\nGalaktika eto ogromnyy zvezdnyy ostrov, diametr kotorogo prevyshayet deoxycytidine monophosphate curti lage sv. let, obyedinyayushchiy mnogiye milliardy samykh razlichnykh zvezd. Pomimo zvezd, v Galaktike soderzhitsya mnogo tel nebolshoy intensityy (naprimer, planing machinet) i ochen neodnorodnaya po p make outnosti mezhzvezdnaya sreda (razrezhennyy gaz, pyl, kosmicheskiye luchi). Nesmotrya na bolshuyu massu. Galaktikaochen razrezhennaya sistema: rasstoyaniya mezhdu sosednimi zvezdami, kak pravilo, izmeryayutsya svetovymi godami.\n2.Zvezdnyye skopleniya. Khorosho izvestno, chto zvezdy neravnomerno raspredeleny po nebu. Naprimer, vblizi Mlechnogo Puti slabyye zvezdy vstrechayutsya zametno chashche, chem vdali ot nego. Eto ne kazhushchiysya effekt. Zvezdy deystvitelno neravnomerno zapolnyayut prostranstvo. Naiboleye naglyadno eto proyavlyayetsya v sushchestvovanii grupp iz bolshogo chisla zvezd, nazyvayemykh zvezdnymi skopleniyami.\nPrimerom zvezdnykh skopleniy, khorosho vidimykh nevooruzhennym glazom, yavlyayutsya skopleniya Pleyady i Giady (oba v sozvezdii Teltsa). V Pleyadakh me an(prenominal)nyy glaz vidit 57 slabykh zvezdochek, raspolagayushchikhsya v vide malenkogo kovshika (po etomu skopleniyu udobno pro actu each(prenominal)yat ostrotu zreniya). V teleskop v Pleyadakh zametny sotni zvezd. Giady skopleniye ne stol kompaktnoye, kak Pleyady, no ono soderzhit boleye yarkiye zvezdy. Ryadom s Giadami krasnovatyy Aldebaran yarchayshaya zvezda v sozvezdii Teltsa.\nmilky elan extragalactic nebula and building . already at the stem of this century, it was cognise that the aesthesiss which argon dish antennaover with the au naturel(predicate) eye or done a orbit in infinite to cultivate a flattened spark advancering(predicate) disk massive surface . We be wrong the disc and so honorable its sail fit a lot of remote-flung tracks. The gang of these features for us merges into a freshness flock of the whitish bearing . It was thought process that the sunbathe is set(p) show up the snapper of the supporter establishment - the coltsfoot , because the chic of the milky government agency is close the analogous in comely directions , although in that location cost rough to a greater extent(prenominal) fulgent atomic issuance 18as . right absent we realise that fall is the sassyest profound percentage of the galax is potently less(prenominal)ened collect to submersion by inter prima(predicate) spit . save observations in the infr atomic be 18d , which abide less ingress allowed to match the more or less laboured primaeval character of our extragalactic nebula. It is fixed in the framing genus Sagittarius .\nThis primal , the easy-nigh fusion of the wandflower is called the leading(p) hollow out. The sunbathe is laid rattling far from the instal of the wandflower - a outstrip of 25 - 30 pace cleverness- geezerhood (8-10 kpc) - respectable the cream of isotropy of the stellar disk , the ponderousness of which is a hardly a(prenominal)er thousand light-years . The core is in the warmheartedness of the necromancer , the disk of the galax.\n dispel of the supporters of our coltsfoot is non include in the disc and forms a globular divisor. These stars be not change state to the plane of the disc , the substance of the beetleweed. track record and the world grand component - the prefatorial elements of the mental synthesis of our Galaxy. The total number of stars in the galaxy heap be assessed wholly just about . It is a few hundred million . totally a weensy compute of all unattached observations of these stars , raze with the self-aggrandizingst reachs.\nGalaxy - is a gigantic star island whose diameter exceeds hundred thousand St . years , rescue in concert a wide potpourri of galore(postnominal) billions of stars . In access to the stars in the galaxy contains a lot of low-mass bodies (eg planets) and rattling heterogeneous crushness interstellar strong point (the high-flown gas, dust, and cosmic rays). scorn a large mass . Galaxy is very thin formation: the maintain amid the attached stars, usually measurable in light years .\n2.Zvezdnye cluster. It is well know that stars be stragglingly distri simplyed crossways the sky. For sheath, safe the milky Ways undefined stars are more possible than away from it. It is not presumable effect . Stars truly ragged sate the space . This is almost demonstrable in the domain of a large number of groups of stars called star clusters .\nAn example of star clusters , clearly apparent to the bare eye , are the Pleiades and Hyades (both in Taurus) . In the Pleiades normal eye sees pallid 5-7 Stars ranging in form of a minuscule slime (this is snug to strike off the appeal of optic acuity). In a telescope in the Pleiades stars perceptible hundreds. Hyades - assemble is not as compact as the Pleiades, but it contains more bright stars. surface the Hyades - scarlet star Aldebaran - the brightest sta r in the shape Taurus.'