apparent magnitude
A numerical measure of the brightness of a star, planet etcA 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.
» The apparent magnitude of the star of Alcor is +3.99.
BilalBouy · Tatoeba · CC BY 2.0 FRTranslations
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Examples
1 sentencesThe apparent magnitude of the star of Alcor is +3.99.
Meaning
1 senses(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.
ви́димая звёздная величина́vídimaja zvjózdnaja veličiná
Forms
plural: apparent magnitudes| Singular | apparent magnitude |
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regular
Word family
2 related wordsLessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable
See also
neighbours in the dictionaryDictionary text adapted from Wiktionary (Wiktionary contributors, CC BY-SA 4.0) and Open English WordNet / Princeton WordNet (CC BY 4.0, WordNet License); shared under CC BY-SA 4.0. Example sentences and recordings are credited where they appear.