[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.hass.cz\/jaky-konec-muze-potkat-hvezdu\/#Article","mainEntityOfPage":"https:\/\/www.hass.cz\/jaky-konec-muze-potkat-hvezdu\/","headline":"Jak\u00fd konec m\u016f\u017ee potkat hv\u011bzdu","name":"Jak\u00fd konec m\u016f\u017ee potkat hv\u011bzdu","description":"Nic na tomto sv\u011bt\u011b netrv\u00e1 v\u011b\u010dn\u011b. To plat\u00ed i o hv\u011bzd\u00e1ch, by\u0165 by se zd\u00e1lo, \u017ee tyto nikdy nezmiz\u00ed. Opak je v\u0161ak pravdou. I ony maj\u00ed to, co se mnohdy naz\u00fdv\u00e1 \u017eivotn\u00ed cyklus. Ten samoz\u0159ejm\u011b neznamen\u00e1, \u017ee je hv\u011bzda na\u017eivu tak, jak \u017eivot ch\u00e1peme. Znamen\u00e1 to pouze, \u017ee proch\u00e1z\u00ed ur\u010dit\u00fdm procesem \u2013 stejn\u011b se nap\u0159\u00edklad...","datePublished":"2022-12-30","dateModified":"2023-11-30","author":{"@type":"Person","@id":"https:\/\/www.hass.cz\/author\/#Person","name":"","url":"https:\/\/www.hass.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/91506ed60e31abe586276a3e1420719df081581a820344a28fa2034bb1a2fe22?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/91506ed60e31abe586276a3e1420719df081581a820344a28fa2034bb1a2fe22?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"hass.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.hass.cz\/wp-content\/uploads\/hvezdy1.jpg","url":"https:\/\/www.hass.cz\/wp-content\/uploads\/hvezdy1.jpg","height":0,"width":0},"url":"https:\/\/www.hass.cz\/jaky-konec-muze-potkat-hvezdu\/","about":["V\u011bda"],"wordCount":427,"articleBody":"\tNic na tomto sv\u011bt\u011b netrv\u00e1 v\u011b\u010dn\u011b. To plat\u00ed i o hv\u011bzd\u00e1ch, by\u0165 by se zd\u00e1lo, \u017ee tyto nikdy nezmiz\u00ed. Opak je v\u0161ak pravdou. I ony maj\u00ed to, co se mnohdy naz\u00fdv\u00e1 \u017eivotn\u00ed cyklus. Ten samoz\u0159ejm\u011b neznamen\u00e1, \u017ee je hv\u011bzda na\u017eivu tak, jak \u017eivot ch\u00e1peme. Znamen\u00e1 to pouze, \u017ee proch\u00e1z\u00ed ur\u010dit\u00fdm procesem \u2013 stejn\u011b se nap\u0159\u00edklad hovo\u0159\u00ed o \u017eivotnosti v\u00fdrobku.\t\u00a0\tPrvn\u00ed f\u00e1z\u00ed je samotn\u00e9 jej\u00ed vytv\u00e1\u0159en\u00ed, kdy se v\u00a0mlhovin\u00e1ch za\u010dnou shlukovat atomy vod\u00edku. Kdy\u017e jich je dostate\u010dn\u00e9 mno\u017estv\u00ed (a to je v\u011bt\u0161\u00ed, ne\u017e bychom si mohli p\u0159edstavit), za\u010dnou spolu reagovat a vznikne jadern\u00e1 reakce, kdy se za\u010dnou p\u0159em\u011b\u0148ovat na atomy h\u00e9lia.\t\u00a0\t\u00a0\t\u00a0\tTato f\u00e1ze trv\u00e1 nejd\u00e9le a pr\u00e1v\u011b zde hovo\u0159\u00edme o hv\u011bzd\u011b. Pr\u00e1v\u011b prob\u00edhaj\u00edc\u00ed jadern\u00e1 reakce zp\u016fsobuje ono teplo a sv\u011btlo, pro kter\u00e9 jsou zn\u00e1m\u00e9. To ostatn\u011b plat\u00ed i o na\u0161em Slunci. Ani ono nen\u00ed ve skute\u010dnosti ni\u010d\u00edm jin\u00fdm, ne\u017e obrovsk\u00fdm jadern\u00fdm reaktorem. To je tak\u00e9 d\u016fvod, pro\u010d je pro vznik \u017eivota nutn\u00e1 atmosf\u00e9ra, zejm\u00e9na pak oz\u00f3n, kter\u00fd valnou \u010d\u00e1st onoho radioaktivn\u00edho z\u00e1\u0159en\u00ed pohlt\u00ed.\t\u00a0\tOv\u0161em z\u00e1soba atom\u016f vod\u00edku nen\u00ed nekone\u010dn\u00e1. A pr\u00e1v\u011b ve chv\u00edli, kdy se ve\u0161ker\u00fd vod\u00edk p\u0159em\u011bn\u00ed na h\u00e9lium, hovo\u0159\u00edme o konci hv\u011bzdy. Ten v\u0161ak m\u016f\u017ee prob\u00edhat r\u016fzn\u00fdmi zp\u016fsoby, podle toho, o jak velkou hv\u011bzdu se jednalo.\t\u00a0\t\u00a0\t\u00a0\tV\u00a0naprost\u00e9 v\u011bt\u0161in\u011b p\u0159\u00edpad\u016f dojde nejprve k\u00a0dramatick\u00e9mu rozp\u00edn\u00e1n\u00ed, f\u00e1z\u00ed zn\u00e1m\u00e9 jako \u010derven\u00fd \u010di rud\u00fd obr. To \u010dek\u00e1 i na\u0161e Slunce, kter\u00e9 se zv\u011bt\u0161\u00ed tak, \u017ee pohlt\u00ed i na\u0161i planetu. N\u00e1sledn\u011b v\u0161ak zap\u016fsob\u00ed gravita\u010dn\u00ed s\u00edly a nastane smr\u0161t\u011bn\u00ed.\t\u00a0\tPr\u00e1v\u011b v\u00a0t\u00e9to chv\u00edli m\u016f\u017eeme vid\u011bt mezi hv\u011bzdami rozd\u00edly. U t\u011bch, kter\u00e9 m\u011bly st\u0159edn\u00ed \u010di men\u0161\u00ed hmotnost, podobn\u011b jako ta na\u0161e, dojde ke shluknut\u00ed do mal\u00e9ho, chladn\u00e9ho, z\u00e1\u0159iv\u00e9ho bodu, zn\u00e1m\u00e9ho jako b\u00edl\u00fd trpasl\u00edk.\t\u00a0\tPokud v\u0161ak byla hv\u011bzda skute\u010dn\u011b velk\u00e1, zhrout\u00ed se sama do sebe. Dojde v\u00a0podstat\u011b k\u00a0explozi, jej\u00edm\u017e v\u00fdsledkem bude \u010dern\u00e1 d\u00edra. To je ostatn\u011b tak\u00e9 zp\u016fsob, jak\u00fdm tyto vznikaj\u00ed. Pamatujme tak, \u017ee ka\u017ed\u00e1 z\u00a0nich znamen\u00e1 zem\u0159elou hv\u011bzdu.                                                                                                                                                                                                                                                                                                                                                                                                "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Jak\u00fd konec m\u016f\u017ee potkat hv\u011bzdu","item":"https:\/\/www.hass.cz\/jaky-konec-muze-potkat-hvezdu\/#breadcrumbitem"}]}]