Blue hour
Videos
The blue hour is the period of twilight when the Sun is at a significant depth below the horizon. During this time, the remaining sunlight takes on a mostly blue shade. This shade differs from the col
Blue hour at the Old Cathedral of the Holy Name of Jesus, Bragança in Portugal
Die blaue Stunde (1890), painting by Max Klinger
Twilight (1897), painting by Edmund Tull (Ödön Tull)
Evening at the Lumber Yards of Kiba (1920), woodcut by Kawase Hasui
Green flash
Videos
The green flash and green ray are meteorological optical phenomena that sometimes occur transiently around the moment of sunset or sunrise. When the conditions are right, a distinct green spot is brie
Blue hour
…Color temperature Green flash Golden hour (photography…
The development of a green flash at sunset in San Francisco
A green flash in Santa Cruz, California
The stages of a green flash
A mock-mirage green flash observed in San Francisco, California