Final answer:
The brightest stars have an absolute magnitude of -5, with negative numbers on the magnitude scale indicating brighter stars due to the scale's logarithmic nature.
Step-by-step explanation:
The value of absolute magnitude that correlates to the brightest stars is -5. In the magnitude scale for stars, a lower number represents a brighter star, and negative numbers indicate the brightest stars in the sky. The scale is logarithmic, where a difference of 5 magnitudes corresponds to a difference in brightness by a factor of 100. For example, a star with a magnitude of 1 is about 2.5 times brighter than a star with a magnitude of 2. Following this scale, the lower the magnitude number, the brighter the star.