## distance modulusThe distance modulus is the difference between the apparent magnitude ( m) of an astronomical object, such as star, and its absolute
magnitude (M). The distance modulus is given bym - M = 5 log d - 5
where d is the distance in parsecs. Rearranging this enables d to be calculated from the formula d = 10^{(m - M + 5)/5}
## Related category• ASTRONOMICAL QUANTITIES | |||||

Home • About • Copyright © The Worlds of David Darling • Encyclopedia of Alternative Energy • Contact |