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Magnitude. The degree of brightness of a star or other object in the sky according to a scale on which the brightest star has a magnitude -1.4 and the faintest visible star has magnitude 6. Sometimes referred to as apparent magnitude. In this scale, each number is 2.5 times the brightness of the previous number. Thus a star with a magnitude of 1 is 100 times brighter than on with a visual magnitude of 6.
The apparent magnitude is how bright the star appears to us, but  stars are all at different distances so that a star that is really  bright might look dim because it is ver â¦ y far away. So the absolute  magnitude measures how bright the star would look if it was placed  at a standard distance of 10 parsecs.   When the absolute magnitude is greater than the apparent magnitude,  it just means that it is closer than 10 pc.  Absolute magnitude is the brightness of an object as seen from a predete â¦ rmined distance, depending on the object.    For planets, the distance used is 1 AU (Astronomical Units). Stars and galaxies use 10 parsecs which is about 32.616 light years.