1. the magnitude of a star as it would appear to a hypothetical observer at a distance of 10 parsecs or 32.6 light-years.
Examples from the web for absolute magnitude
- It is not the absolute magnitude of the speed of the object that is measured, but only the radial component of the speed.
- For time transfer, the absolute magnitude of the path delay must be known.
British Dictionary definitions for absolute magnitude
noun 1. the apparent magnitude a given star would have if it were situated at a distance of 10 parsecs (32.6 light years) from the earth
absolute magnitude in Science