Number of posts : 4320 Location : Earth Registration date : 2008-04-06
Subject: Calculating abs mag without app mag. 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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marasama SuperEarth
Number of posts : 220 Location : Earth Registration date : 2008-04-22
Subject: Re: Calculating abs mag without app mag. 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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Lazarus dF star
Number of posts : 3337 Registration date : 2008-06-12
Subject: Re: Calculating abs mag without app mag. 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.