apparent magnitude en · NOUN
Pronunciation
- (US) audio
Meanings
- (countable, uncountable) a numerical measure of the brightness of a star, planet etc.; a star with apparent magnitude 0 gives an illuminance of 2.54 microlux just outside the earth's atmosphere, or 82% of that (2.08 microlux) under clear skies, and every increase of 1 unit represents a decrease in the light received by a factor of 2.512.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| apparent magnitudes | Number=Plur | lexicographic |
Relateds
absolute magnitude · bolometric magnitude
Translations (7)
ms magnitud ketara (measure of the brightness of a heavenly body) · pt magnitude aparente (measure of the brightness of a heavenly body) · ga méid dhealraitheach (measure of the brightness of a heavenly body) · fr magnitude apparente (measure of the brightness of a heavenly body) · ro magnitudine aparentă (measure of the brightness of a heavenly body) · ru ви́димая звёздная величина́ (measure of the brightness of a heavenly body) · hi सापेक्ष कांतिमान (measure of the brightness of a heavenly body)