Näivate tähesuuruste astmik väljendab valgustaju puhul Weberi-Fechneri üldist psühhofüüsilist seadust, mis nendib aistingute ja ärrituste logaritmilist vahekorda.
Astronomers define star brightness in terms of apparent magnitude (how bright the star appears from Earth) and absolute magnitude (how bright the star appears at a standard distance of 32.6 light years, or 10 parsecs).
Online Language Learning Tool SkELL allows users to search for phrases in sentences, collocates and similar words. These examples have been automatically selected and may contain errors.