2011 February 28 |
Red Snow Moon Over Edmonton
Credit & Copyright: Luca Vanzella
Explanation: What's hovering between those buildings?The Moon. The above image was taken two weeks ago as thefull Snow Moon started to rise aboveEdmonton,Alberta,Canada.The odd coincidence between theangular size of thefar distant Moonand the angular width of nearby buildings created a striking juxtaposition.Backing away from the buildings so to reduce their angular size was a key to planning the image.The temperature was so low, -25C,that plumes of steam rose from neighboring oil refineries.The above image was taken during a momentary break in the plumes.The rising Moon appears red here for the same reason that a settingSun appears red -- because blue light is preferentiallyscattered away by intervening air.In this case, theshimmering steam plumeslikely also caused the Moon to appearslightly compressed.The next full moon, thefull Worm Moon, will occur in mid-March.