Wednesday, November 30, 2022

⛳ The H–R Diagram and Cosmic Distances

Stars with identical temperatures but different pressures (and diameters) have somewhat different spectra. Spectral classification can therefore be used to estimate the luminosity class of a star as well as its temperature. As a result, a spectrum can allow us to pinpoint where the star is located on an H–R diagram and establish its luminosity.

Sunday, July 31, 2022

🕮 #Integrals, #math, #calculus, #mathematics, Integral

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