the.com/blue hour

The brief twilight when the sky goes electric and the world remembers it's magic.

means The short period of twilight just before sunrise or after sunset when the sun is below the horizon and indirect sunlight bathes everything in a deep, saturated blue.

from A near-direct translation of the French 'l'heure bleue,' a phrase long beloved by painters and photographers for that fleeting blue cast over the sky. The French perfume house Guerlain even named a fragrance 'L'Heure Bleue' in the early 20th century, helping carry the term into wider use, though the lyrical phrase itself was already in the air among artists chasing the light.

french origin
Named l'heure bleue by the French.
sun position
Sun sits 4-8 degrees below horizon.
twice daily
Happens at both dawn and dusk.
photographer favorite
Soft blue light flatters skin and skylines.
short window
Lasts only 20-40 minutes per occurrence.
for instance

blue hour photography — twilight period roughly 20-40 minutes after sunset when sky appears deep blue, used by photographers in cities like new york and dubai

blue hour in reykjavik — extends for several hours during winter months in iceland due to high latitude, making it popular for landscape photography

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