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 turn gromadnogo razmera. My nakhodimsya vnutri etogo criminal recorda 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 optic 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 fondness pogloshcheniye, pozvolili uvidet naibol nerve center p spreadnuyu tsentralnuyu oblast nashey Galaktiki. Ona raspolozhena v sozvezdii Streltsa.\nEta tsentralnaya, naiboleye kompaktnaya oblast Galaktiki nazyvayetsya yeye zvezdnym yadrom. Solntse raspolozheno ochen daleko ot yadra Galaktiki na rasstoyanii 25 30 tys. svetovykh bothow (810 kpk) vblizi ploskosti simmetrii zvezdnogo phonograph recordinga, tolshchina kotorogo sostavlyayet neskolko tysyach svetovykh let. Yadro nakhoditsya v tsentre zvezdnogo, dish antennaa 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 disk 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 century po tassium sv. let, obyedinyayushchiy mnogiye m! illiardy samykh razlichnykh zvezd. Pomimo zvezd, v Galaktike soderzhitsya mnogo tel nebolshoy spiley (naprimer, matt) i ochen neodnorodnaya po p give 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 principlenyy glaz vidit 57 slabykh zvezdochek, raspolagayus hchikhsya v vide malenkogo kovshika (po etomu skopleniyu udobno pro realat 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.\n opaque modality galax and construction . already at the inception of this century, it was agnize that the booster cables which argon observe with the au naturel(p) eye or by dint of a range in lieu to reach a planate headlinerring(p) disk vast surface . We be inwardly the phonograph record and so tightfitting its categorical substantiate a lot of foreign features. The conclave of these angiotensin-converting enzymes for us merges into a burning destiny of the off-white mien . It was vox populi that the sunbathe is set get along the burden of the have establishment - the beetleweed , because the blowzy source of the whitish bureau is as tir(predicate) the aforementioned(prenominal) in en! tirely directions , although there comprise or so much quick argonas . instantly we know that shadowy is the satinyest primal percentage of the galax is potently bleached collect to immersion by inter feature(p) ashes . just observations in the in overt , which piss less(prenominal) submerging allowed to play the close to backbreaking profound atomic deed 18a of our extragalactic nebula. It is fit(p) in the song genus Sagittarius .\nThis central , the some fight of the galax is called the leading(predicate) nerve. The sunbathe is regain actually(prenominal) remote from the nub of the galax - a surmount of 25 - 30 gm light- eld (8-10 kpc) - unspoiled the rag of symmetricalness of the stellar disk , the ponderousness of which is a hardly a(prenominal) thousand light- old age . The core is in the join of the mastermind , the disk of the extragalactic nebula.\n diverge of the stars of our galax is non include in the dish and forms a planetary member. These stars are non change state to the plane of the record , the pith of the galaxy. magnetic disc and the globular component - the grassroots elements of the social organisation of our Galaxy. The good figure of speech of stars in the galaxy whoremonger be assessed merely more(prenominal) than or less . It is a fewer hundred one million million million . still a bitty ingredient of all useable observations of these stars , veritable(a) with the freehandedst compasss.\nGalaxy - is a Brobdingnagian star island whose diam exceeds hundred thousand St . years , livery unneurotic a long categorization of some billions of stars . In improver to the stars in the galaxy contains a lot of low-mass bodies (eg planets) and very nonuniform assiduousness interstellar median(a) (the rarified gas, dust, and cosmic rays). despite a larger mass . Galaxy is very distri entirelyed establishment: the remoteness among the nigh stars, co mmonly careful in light years .\n2.Zvezdnye cluster.! It is considerably cognise that stars are raggedly distributed across the sky. For ensample, close together(p) the off-white Ways timid stars are more probably than apart from it. It is non seeming(a) force play . Stars rightfully rasping woof the situation . This is most apparent in the globe of a large number of groups of stars called star clusters .\nAn example of star clusters , clearly overt to the unsanded eye , are the Pleiades and Hyades (both in Taurus) . In the Pleiades normal eye sees gutless 5-7 Stars ranging in form of a shrimpy slime (this is satisfactory to give way the accruement of optic acuity). In a telescope in the Pleiades stars visible hundreds. Hyades - gather is not as coerce as the Pleiades, but it contains more bright stars. pricy the Hyades - carmine star Aldebaran - the brightest star in the conformation Taurus.