distance modulus

dis·tance mod·u·lus

D d

Definition of distance modulus words

noun distance modulus a measure of the distance, r, of a celestial object too far away to show measurable parallax. It is given by m–M = 5 log(r/10), where m is its apparent magnitude (corrected for interstellar absorption) and M is its absolute magnitude 0

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A common word. It’s meaning is known to most children of preschool age. About 87% of English native speakers know the meaning and use the word.

Most Europeans know this English word. The frequency of it’s usage is somewhere between "mom" and "screwdriver".

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