absolute magnitude

noun

Definition of absolute magnitude

: a measure of the intrinsic luminosity of a celestial body (such as a star) expressed as the apparent magnitude the body would have if viewed from a distance of 10 parsecs

First Known Use of absolute magnitude

1885


Learn More about absolute magnitude


Seen and Heard

What made you want to look up absolute magnitude? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!