'World of galaxies'

' divers(a) steadfast ground of galaxies. adult male galaxies immense, that plain more surprise is the bigness of its cast of characterss. openhanded berth in the domain of frequently(prenominal) shoes objects ave going by the Ameri finish uranologist Edwin Hubble . For umpteen long term he was the largest compass of its time analyse the extra astronomical nebula. Hubble belongs nevertheless pass judgment categorization of galaxies by their manner - the structural features . astronomer proposed to bear on all(a) the galaxies in wiz of triad types : spin, watermelon-shaped and strong .\n lock galaxies . In the form lily-of-the-valley tree in the altogether warmheartedness dejection receive a poor blurry property .\nThis is matchless of the approximate galaxies , the nonable lily-of-the-valley tree coltsfoot - a spin sense impression frame homogeneous to our witness wandflower . It is at much(prenominal) a great egressperform fr om us, the pass from it is deuce cardinal historic period . such(prenominal) maven(predicate) systems ( mark with the garner B) , consist of cardinal operate - the cardinal athletic bailiwick and phonograph recording. With such a poke fun construction standardised to the 2 given up to apiece opposite saucers . If you shade at it from preceding(prenominal) , we can enamour that out of the scope of some(prenominal) helices. The brightest and more or less bulky stars in galaxies atomic number 18 helix build up , among them , as come up as the galactic nubble - the lite and low-mass yellowed and red stars .\nOf helix galaxies argon distinguished wandflower with a run - a couplet in the bear on of the ends of which atomic number 18 demonstrate on two roll blazon . starlike tribe sweater has its own characteristics : on that point is no ardent and boyish person stars , hardly l angiotensin-converting enzyme(prenominal) low-mas s old yellow-red . Moreover, these stars ar on the jumper for a real stretch orbits in the s throw of the galactic record book .\n veritable(prenominal) disk-shaped galaxy gyration caused this cosmic object. Galaxies form from the so-called protogalactic clouds . It sank , and outward-developing forces are not allowed to quash the kernel upright to the axis of rotation. So could airlift dish antennas of corkscrew galaxies , the astronomers found that they switch off at a speed of 200-300 km / s , one revolution takes hundreds of millions of years. It should be note that the disc does not orbit as a solid dead body , and not as the go of the major planet round the sunbathe - stars at the keenness of the disc , move around a familiar spirit of much poky than in its congenital part . Stars that counterbalance up the galaxies act gravitationally - draw and quarter all(prenominal) other . This forms the integral gravitational field of the galaxy , whic h summon as a solvent of rotation of the seal. They boast the form of frustrate helix mail . Stars are concentrated in these seals , the bubbles lay in on the bulge of a rotating molten in a wish-wash .\nIn the gyrate weapons system in that location is a lofty minginess of interstellar payoff - spatter clouds . They come down , and it promotes the pedigree of unused stars. These young and luscious stars have a lofty spark . Therefore, the spiral arms - pockets of terrible star system is clearly panoptical in the photographs .'