Twilight Comparison at Curitiba, Brazil, Before and Post Eruption of Hunga Tonga
September 09, 2022
Photographer: Fabiano Belisário Diniz
Summary Author: Fabiano Belisário Diniz
Shown above is a dramatic comparison between a normal twilight and a volcanic twilight as observed from Curitiba, Brazil, on July 7, 2017 (top) and on June 12, 2022 (bottom). Ash from the Hunga Tonga volcano played a major role in enhancing the dusk colors on the 2022 photo. Note that both photos were taken when the sun was 11 degrees below the horizon in Curitiba. Many places in the southern hemisphere, and elsewhere, have been experiencing particularly colorful twilights since late January, some two weeks after the eruption.
Photo details: Although both photos show the same stage of twilight (sun at -11 degrees), the city lights appear fainter in the bottom photo because I used a graduated filter with the dark portion facing down.
Curitiba, Brazil Coordinates: -25.4372, -49.2700
Related Links:
Crimson Sunset over Curitiba, Brazil
Atacama Desert and Volcanic Twilight