bn:02787104n
Noun Concept
Categories: Visibility, Earth phenomena, Night, Parts of a day, Atmospheric optical phenomena
EN
blue hour  Heure bleue  Sweet light  the blue hour
EN
The blue hour is the period of twilight when the Sun is at a significant depth below the horizon. Wikipedia
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EN
The blue hour is the period of twilight when the Sun is at a significant depth below the horizon. Wikipedia
Period of twilight. Wikipedia Disambiguation
Period of twilight in the morning or evening Wikidata
The period of twilight each morning and evening where there is neither full daylight nor complete darkness. Wiktionary
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