Calculating abs mag without app mag.

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Calculating abs mag without app mag.

Post by Sirius_Alpha on 2nd November 2008, 3:37 pm

Is there some way I can calculate the absolute magnitude of an object knowing only it's, Temperature, Radius, and Distance? I can't seem to find an appropriate equation.

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Re: Calculating abs mag without app mag.

Post by marasama on 3rd November 2008, 1:18 am

I would think so. Since they get the Teff of a star by knowing the distance, Av, and spectra type. Radius will probably fall to dwarf, giant, etc. I'll try to find the equation.

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Re: Calculating abs mag without app mag.

Post by Lazarus on 3rd November 2008, 7:32 am

You could calculate bolometric magnitude from those quantities but for visual you'd need to figure out the bolometric correction.
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Re: Calculating abs mag without app mag.

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