balmer series
51David Stanley Evans — (28 January 1916 14 November 2004) was a British astronomer, noted for his use of lunar occultations to measure stellar angular diameters during the 1950s. Contents 1 Early life and education 2 Career 2.1 South Africa …
52David Stanley Evans — (* 28. Januar 1916 in Cardiff, Wales; † 14. November 2004 in Austin, Texas) war ein britischer Astronom, der bekannt dadurch wurde, dass er Mondbedeckungen benutzte um Winkeldurchmesser von Sternen in den 1950er Jahren zu bestimmen. Leben Evans… …
53A star — Astron. a blue to white star, as Altair, Sirius, or Vega, having a surface temperature between 7500 and 10,000 K and an absorption spectrum dominated by Balmer series lines of hydrogen. Cf. spectral type. * * * …
54B star — Astron. a massive, relatively hot, blue to white star, as Rigel or Spica, having a surface temperature between 10,000 and 30,000 K and with an absorption spectrum dominated by the Balmer series of hydrogen with lines of neutral helium present. Cf …
55F star — Astron. a white to yellow star, as Canopus, Polaris, or Procyon, having a surface temperature between 6000 and 7500 K and an absorption spectrum in which the pair of ultraviolet lines of singly ionized calcium and the Balmer series of hydrogen… …
56G star — Astron. a yellow star, as the sun or Capella, having a surface temperature between 5000 and 6000 K and an absorption spectrum in which the ultraviolet pair of lines of singly ionized calcium are strongest and in which the Balmer series is… …
57O star — /oh stahr / a very hot, massive, blue star of spectral type O, having a surface temperature between 30,000 and 50,000 K and an absorption spectrum with few lines, though the Balmer series of hydrogen lines is present and lines of ionized helium… …
58Balmerio serija — statusas T sritis chemija apibrėžtis Vandenilio atomo spektro linijų serija regimojoje spektro srityje. atitikmenys: angl. Balmer series rus. серия Бальмера …
59серия Бальмера — Balmerio serija statusas T sritis chemija apibrėžtis Vandenilio atomo spektro linijų serija regimojoje spektro srityje. atitikmenys: angl. Balmer series rus. серия Бальмера …
60a star — ˈā noun Usage: usually capitalized A Etymology: a (I) : a star of spectral type A see spectral type table * * * Astron. a blue to white star, as Altair, Sirius, or Vega, having a surface temperature between 7500 and 10,000 K and an absorption… …
