View Full Version : Timelapse: Anticrepuscular Rays at Monument Valley

2014-May-29, 02:10 PM
Astrophotograher César Cantú from Mexico is visiting Utah and captured an incredible timelapse of the view at sunset along with the formation of anti-crepuscular rays — a spectacular optical phenomena where light rays scattered by dust and haze appear on the horizon opposite to the setting Sun. The word crepuscular means “relating to twilight,” and […]

More... (http://www.universetoday.com/112222/timelapse-anticrepuscular-rays-at-monument-valley/)