Astronet > Zakon Planka

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Astrometriya

Zavisimost' izluchatel'noi sposobnosti $\varepsilon_\lambda$ absolyutno chernogo tela ot temperatury T i ot dliny volny $\lambda$ : $\varepsilon_\lambda=2\pi hc^2\lambda^{-5}/\left(e^{hc/\lambda kT}-1\right)$ . - $h$ postoyannaya Planka, $k$ - postoyannaya Bol'cmana, $c$ - skorost' sveta.

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