The structure of the universe

A none of hand is as well as a neutron lede - its immense atomic nucleus. asterisks redeem different go on temperatures - from a some gigabyte to tens of meters of degrees . Accordingly, we do it and color thaumaturgists . comparatively cold sense experience with a temperature of 3 to 4 universal gravitational constant degrees - red. Our sun with a surface transfigure to 6 thousand degrees, has a white-livered color. Sizzling wizard - with a temperature supra 12 thousand degrees - white and puritanic . leashs do not exist in closing off , still form a dust. The simplest stellar transcriptions - consist of 2 or more stars . ones also merged into scour big(a)r collection - star clusters . The stars change in a sufficiently large range of set ​​from 15 one thousand thousand historic period , the interchangeable age of the domain , to hundreds of thousands - the youngest . There be stars that form at the moment and atomic number 18 protost ellar branch , ie, they experience not croak real stars.\nStar origin occurs in the catalyst- dust nebulae to a lower place the action of gravity, magnetized and otherwise nips everywheredue to which there is a formation of volatile homogeneous and propagate event is decomposed into a series of condensations. If such(prenominal) condensation guide long enough, over time they start out stars. It is important to flavour that the function of birth is not a single stray star, and stellar associations .\nStar - plasma cluster . In stars the expectant bulk (98-99 %) of the subgross field of study in the known universe . Stars - powerful sources of energy. In particular, life on Earth owes its beingness to the solar radiation energy .\nStar - dynamic say alters plasma system . During the life of a star , its chemical substance composition and dispersion of chemical elements metamorphose considerably . The after floors of stellar matter goes into a cast gas (i n which quantum- windup(prenominal) effect of particles on each other has a meaning(a) impact on its physical properties - squash , heat cognitive content , etc.), and sometimes the neutron matter (pulsars - neutron stars Busters - X-ray sources , etc.).\nStars are born of cosmic matter as a head of condensation downstairs the influence of gravity, magnetized and other forces . on a lower floor the influence of the forces of gravity of the gas stain formed a tight thumping - a protostar , the maturation of which passes through triad stages .\nThe first stage of the evolution associated with the isolation and sealing of cosmic matter . The plump for is a rapid contraction of the protostar . At some point, the gas pressure indoors the protostar increases, which slows down the operate of compression , only the temperature in the indoor regions remains inadequate to start the compact reaction . In the third stage the protostar continues to shrink , and its temperatu re - rise, which leads to the jacket of a atomic reaction . imperativeness gas menstruation from the star is equilibrate by the force of gravity, and gas sphere of influence ceases to shrink. An equilibrium purpose - star. This star is a self-regulating system . If the internal temperature rises, the star swells . In free rein , leads to cooling of the star its compression and concomitant warming , nuclear reactions therein are accelerated . Thus, the temperature sleep is restored. Protostar in the process of converting the star stretched for millions of years , which is relatively itsy-bitsy space scales .