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Radijalna brzina Vidi još Reference Мени за навигацијуRadijalna brzina, članak iz enciklopedije COSMOS na astronomskom univerzitetu u Swinburnu, Australija (U potrazi za drugom Zemljom, članak s portala američke svemirske agencije NASA u SAD-u (

Астрономија


brzinazvijezdaplanetaputanjeZemljecrvenog pomakasvemirgalaksijeastronomivansolarnim planetama










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Radijalna brzina




Из Википедије, слободне енциклопедије






Иди на навигацију
Иди на претрагу


Radijalna brzina je brzina kretanja nebeskih tijela (zvijezda, planeta) u pravcu (smjeru) njihove putanje. [1] Ovu brzinu posmatrač sa Zemlje zapažava posredom crvenog pomaka. [1]




Vansolarne planete koje oko zvijezde kruže uticajem (gravitacije) na njenu poziciju. Zvijezda time periodično oscilira. Te oscilacije prouzrokuju crveni ili plavi pomak [2]


Radijalna brzina dijeli se na:


  1. Pozitivnu radijalnu brzinu - Nebesko tijelo udaljava se od posmatrača - crveni pomak [1]

  2. Negativnu radijalnu brzinu - Nebesko tijelo približava se posmatraču - plavi pomak [1]

Budući da se svemir neprekidno širi galaksije imaju pozitivnu radijalnu brzinu. [1]


Mjerenje radijalne brzine je jedna od metoda koju koriste astronomi u potrazi za novim vansolarnim planetama. [2]



Vidi još


  • Hablov zakon

  • Doplerov efekt


Reference




  1. ↑ 1,01,11,21,31,4 Radijalna brzina, članak iz enciklopedije COSMOS na astronomskom univerzitetu u Swinburnu, Australija (eng.) Pristupljeno 04.01.2013


  2. ↑ 2,02,1 U potrazi za drugom Zemljom, članak s portala američke svemirske agencije NASA u SAD-u (eng.) Pristupljeno dana 04.01.2013








Преузето из „https://sr.wikipedia.org/w/index.php?title=Radijalna_brzina&oldid=14775849”










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