An Etymological Dictionary of Astronomy and Astrophysics

A system of → magnitudes, each of them characterized by a set of
well-defined → passbands (or → filters) with known → response curves. The system is defined by the values given for the → standard stars.
See also:
→ AB magnitude system, → five-color system, → Stromgren system, → JHK system, → UBV system, → uvby system.

See also: → photometric; → system.