Spectrum Type

Name this type of spectrum and describe how its used to determine the temperature of the photosphere?

Astronomers measure the light from the Earth from a distant star. From this data they can learn several types of spectra. One of these spectra May be used to determine the temperature of the photosphere of the star. Type the name of spectrum that can be used for this. Describe how the spectrum is used to determine the temperature of the photosphere.

There are two ways that the effective temperature of a star can be inferred from its spectrum. First, there is the peak of the curve of the intensity of blackbody radiation, which is observed by photometry. Secondly, the intensity ratios for spectral lines from neutral, singly ionized and doubly ionized atoms can be used to determine the temperature Saha equation. And if the star is pretty cool, he could have molecular band features, which may also indicate the temperature of the star.

R-Type

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