This distance equals about 33 light years, or 200 trillion miles, and the exact absolute brightness value of a heavenly body is determined by complex calculations of the elemental composition of the object, the amount of light it sheds measured in lumens and other scientific considerations. Absolute magnitude is a scientific scale of how much light an object would shed if the observer was precisely 10 parsecs away from it. The two major scales of magnitude are visual magnitude and absolute magnitude. The traditional magnitude scale used in astronomy runs from 1 to 6. Magnitude is measured on an inverse scale where lower numbers equal a brighter object. It can be done with both objective scientific measurements and a more qualitative classification of how bright the object is in the sky. Magnitude is an astronomical term that is used to describe precisely how bright a stellar object is.
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