Universe Today
Prolific astrophotographer and Australian astronomer
Joseph Brimacombe
captured this beautiful wide-field view of crepuscular rays from the Sun last week. You definitely want to click on this image to see a larger view on Flickr. This image is made of seven frames; three exposures each. Brimacombe was lucky to get this shot; just seven minutes later (
see the view here
), the spectacular curtain of rays were gone.
The word crepuscular means "relating to twilight," and these rays occur when objects such as mountain peaks or clouds partially shadow the Sun's rays, usually when the Sun is low on the horizon. These rays are visible only when the atmosphere contains enough haze or dust particles so that sunlight in unshadowed areas can be scattered toward the observer.
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