Anticrepuscular Rays Observed Over Santos, Brazil

May 14, 2018

Anticrep_Meire_1-CANON 110 (1)

Photographer: Meire Ruiz Santos
Summary Authors: Meire Ruiz Santos; Jim Foster

The photo above shows a beautiful display of anticrepuscular rays as viewed from the city of Santos in the Sao Paulo state of Brazil. It was taken near sunset, at 6:40 on February 8, 2018 -- the camera is facing east. The darker blue colored lanes are shadows, areas where clouds on the opposite horizon have effectively blocked the Sun's rays. Because there happens to be ample dust and aerosols in the air, the rays of sunlight and shadow project across the entire sky. Perspective makes it seem as though they converge at the antisolar point.

Photo Details: Camera: Canon PowerShot SX40 HS; Exposure Time: 0.017s (1/60); Aperture: ƒ/2.7; ISO equivalent: 320; Focal Length: 4.3mm; Software: Picasa.