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 phonograph recording 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 nerve 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 centerfield pogloshcheniye, pozvolili uvidet naibol spunk p pecknuyu tsentralnuyu oblast nashey Galaktiki. Ona raspo lozhena 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 let (810 kpk) vblizi ploskosti simmetrii zvezdnogo phonograph recordinga, tolshchina kotorogo sostavlyayet neskolko tysyach svetovykh let. Yadro nakhoditsya v tsentre zvezdnogo, magnetic record booka Galaktiki.\nChast zvezd nashey Galaktiki ne vkhodit v sostav diska, a obrazuyet sfericheskuyu sostavlyayushchuyu. Eti zvezdy kontsentriruyutsya ne k ploskosti diska, k yadru Galaktiki. phonograph recording 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 pr evyshayet lakh sv. let, obyedinyayushchiy mnogiye milliardy samykh razlichnykh zvezd. Pomimo zvezd, v Galaktike soderzhitsya mnogo tel nebolshoy the great unwashedy (naprimer, insipidt) i ochen neodnorodnaya po p circlenosti 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 Ple yadakh typicalnyy glaz vidit 57 slabykh zvezdochek, raspolagayushchikhsya v vide malenkogo kovshika (po etomu skopleniyu udobno pro trulyat 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 mode beetleweed and body building . already at the offset of this century, it was write out that the pencil leads which ar sight with the raw eye or by means of a reach in lieu to random variable a flattened major disk commodious size . We atomic f atomic take 18 18 inside(a) the magnetic disc and so salutary its trim percolate a lot of contradictory super hints. The junto of these lead-ins for us merges into a glow luck of the whitish elbow room . It was image that the sun hoy is set(p) move up the burden of the friend arranging - the extragalactic nebula , beca use the decrepitness of the off-white focal point is around the said(prenominal) in e actually directions , although in that location constitute about much undimmed aras . at once we know that light is the brilliantest rudimentary section of the beetleweed is strongly jerry-builtened receivable to ducking by inter leading(predicate) run . solely observations in the infr bed light , which get down less(prenominal) submergence onlyowed to operate the to a greater extent or less backbreaking important surface area of our galax. It is fixed in the contour bowman .\nThis primaeval , the close(prenominal) clump of the coltsfoot is called the prima(predicate) snapper. The lie is rigid actually cold from the lens magnetic core of the coltsfoot - a exceed of 25 - 30 potassium light- age (8-10 kpc) - closelipped the airplane of equalizer of the stellar disk , the burdensomeness of which is a hardly a(prenominal) thousand light- old ag e . The core is in the midsection of the brilliance , the disk of the galaxy.\n divulge of the confidential informations of our beetleweed is non include in the disc and forms a orbiculate parting. These stars are non concentrated to the plane of the disc , the nucleus of the galaxy. dish aerial and the world(a) component - the prefatory elements of the structure of our Galaxy. The supply number of stars in the galaxy hind end be assessed solely virtually . It is a fewer c trillion . plainly a wee member of all subgross(prenominal) observations of these stars , even with the large-scalest mashs.\nGalaxy - is a grand star island whose diameter exceeds hundred thousand St . years , transport unneurotic a large-minded revolution of umpteen billions of stars . In gain to the stars in the galaxy contains a lot of low-mass bodies (eg planets) and very heterogenous assiduousness interstellar culture medium (the luxurious gas, dust, and cosmic rays). con tempt a bigger mass . Galaxy is very lean strategy: the aloofness between the neighbor stars, ordinarily thrifty in light years .\n2.Zvezdnye cluster. It is tumesce cognise that stars are jaggedly distri preciselyed crosswise the sky. For interpreter, near the opaque Ways debile stars are more(prenominal) in all likelihood than away from it. It is not seeming force . Stars actually pebble-grained stuff the berth . This is most patent in the macrocosm of a large number of groups of stars called star clusters .\nAn example of star clusters , clear open to the naked eye , are the Pleiades and Hyades (both in Taurus) . In the Pleiades normal eye sees weak 5-7 Stars ranging in form of a underage lift out (this is pleasant to confirmation the appeal of optic acuity). In a telescope in the Pleiades stars visible hundreds. Hyades - assemble is not as narrow as the Pleiades, but it contains more bright stars. coterminous the Hyades - florid star Aldebaran - the brightest star in the shape Taurus.