<span>Although a star might look brighter than the Sun, a comparison of its absolute<span>magnitude might help prove that they have the same real brightness. Absolute magnitude is a concept that compares the absolute brightness of celestial objects. The absolute magnitude of an object is defined as the apparent magnitude it would have if it were viewed at a standard distance of 10 parsecs (32.6 light-years) with no dimming of its light. The more luminous an object, the smaller the numerical value of its absolute magnitude.</span></span>
Although a star might look brighter than the Sun, a comparison of its <u>Absolute </u>magnitude might help prove that they have the same real brightness.
Explanation:
Apparent magnitude measures the brightness of a celestial body from the Earth at its actual position.
Absolute magnitude is the apparent magnitude of the same body when it is at a distance of 10 parsecs.
A star might look brighter than the sun but actual comparison of the brightness can be done by comparing the absolute magnitudes of the two stars.
The finches Darwin discovered are genetically different from other finches of the same species because of differences in habitat climate and the habitat itself.