You searched for: “absolute magnitude
absolute magnitude, M
1. The magnitude a celestial object would appear to have if it were at a distance of ten parsecs (10 times 3.261633 light years or 32.62 parsecs).
2. A measure of the true or intrinsic brightness of a star as if all stars were the same distance (32.6 light-years) from the observer.
This entry is located in the following unit: Astronomy and related astronomical terms (page 1)