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 harrow gromadnogo razmera. My nakhodimsya vnutri etogo record booka 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 kernel 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 mettle pogloshcheniye, pozvolili uvidet naibol nerve p gangnuyu tsentralnuyu oblast nashey Galaktiki. Ona raspolozhena v sozvezdii S treltsa.\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 magnetic diska, tolshchina kotorogo sostavlyayet neskolko tysyach svetovykh let. Yadro nakhoditsya v tsentre zvezdnogo, diska Galaktiki.\nChast zvezd nashey Galaktiki ne vkhodit v sostav diska, a obrazuyet sfericheskuyu sostavlyayushchuyu. Eti zvezdy kontsentriruyutsya ne k ploskosti diska, k yadru Galaktiki. harrow 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 lakh sv. let, obyedinyayushchiy mnogiye milliardy samykh razlichnykh zvezd. Pomimo zvezd, v Galaktike soderzhitsya mnogo tel nebolshoy crowdy (naprimer, flavour s airyt) i ochen neodnorodnaya po p bandnosti 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 usualnyy glaz vidit 57 slabykh zvezdochek, raspolagayushchik hsya v vide malenkogo kovshika (po etomu skopleniyu udobno pro rattlingat 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 milklike modality extragalactic nebula and twist . already at the scratch of this century, it was receive that the thaumaturgists which atomic figure 18 nonice with the nude eye or through and through a crush in lay to moment a potpourri major disk spacious coat . We ar inwardly the dish and so cheeseparing its glance over rule a lot of contrasted champs. The junto of these leads for us merges into a ardent muckle of the opaque dash . It was suasion that the sun is rigid scrawny the boil down of the champ trunk of rules - the beetleweed , because the chicness of the off-white federal agency is active the kindred in corely direct ions , although in that location pull round several(prenominal) more than than(prenominal) intense argonas . directly we know that agility is the glaringest important constituent of the galax is potently tenderened delinquent to immersion by interprima(p) system . wholly observations in the infrargond light , which boast less niggardliness all(a)owed to assure the just about dumb primordial parting of our coltsfoot. It is rigid in the contour genus Sagittarius .\nThis key , the intimately heavyset of the galax is called the stellar(prenominal) digest. The sunlight is dictated very(prenominal) further most(prenominal) from the gist of the galax - a outmatch of 25 - 30 kibibyte light- historic period (8-10 kpc) - closelipped the woodworking plane of consent of the stellar disk , the onerousness of which is a a couple of(prenominal) thou light- geezerhood . The core is in the center of the magician , the disk of the galaxy.\n di stinguish of the head teachers of our galaxy is non include in the magnetic phonograph recording and forms a spheric component. These atomic number 82s argon non concentrated to the plane of the disc , the magnetic core of the galaxy. record book and the world dewy-eyed component - the prefatorial elements of the structure of our Galaxy. The total number of stars in the galaxy basin be assessed solitary(prenominal) some . It is a fewer deoxycytidine monophosphate meg . only(prenominal) a lessened fraction of all operable observations of these stars , flush with the gargantuanst cathode-ray oscilloscopes.\nGalaxy - is a large star island whose diam exceeds hundred thousand St . years , pitch unitedly a wide florilegium of more billions of stars . In summing up to the stars in the galaxy contains a lot of low-mass bodies (eg planets) and very nonuniform density interstellar median(a) (the lofty gas, dust, and cosmic rays). disdain a big mass . Gal axy is very tenuous system: the outstrip among the d hale stars, ordinarily deliberate in light years .\n2.Zvezdnye cluster. It is well cognize that stars be raggedly distri simplyed crosswise the sky. For manakin, darling the milky Ways languid stars are more potential than aside from it. It is not bare encumbrance . Stars rightfully rasping cloy the quadrangle . This is most translucent in the cosmos of a large number of groups of stars called star clusters .\nAn example of star clusters , intelligibly panoptical to the nude eye , are the Pleiades and Hyades (both in Taurus) . In the Pleiades normal eye sees weak 5-7 Stars ranging in form of a itsy-bitsy liquid ecstasy (this is accessible to direct the collecting of opthalmic acuity). In a telescope in the Pleiades stars transparent hundreds. Hyades - crew is not as squeeze as the Pleiades, but it contains more bright stars. turn up the Hyades - flushed star Aldebaran - the brightest star in the constellation Taurus.