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    Re: FW: The N )VA Crescent from a different angle
    From: Frank Reed
    Date: 2009 Jan 11, 17:32 -0800

    This image has been posted to the list before. Go here and scroll down to the subject "Moonrise":
    
    http://www.fer3.com/arc/sort2.aspx?y=200603su
    
    It's not a photo, or even a composite of multiple photos. It's pure digital 
    art; a fantasy scene as you might find in a video game (ten points if you 
    shoot down the Moon before the Giant Squid eats you!). This particular bit of 
    digital art was created by a kid in Germany using software called "Terragen" 
    which, IMHO, is the real 'work of art' in this story. Here's their web site: 
    http://www.planetside.co.uk/terragen/. The image was picked up by the 
    forward-hordes sometime back in 2005, re-labeled, and given the usual 
    "forward to all your friends" chain letter treatment.
    
    So how can we tell it's not real? I've got three clues...
    
    1) The Sun is too small compared to the Moon. That's a big clue. But the image 
    might be mis-labeled, so maybe we should set that aside for the moment and 
    consider the possibility that it's actually an over-exposed image of a star 
    or planet. 
    
    2) If it's taken from any place on Earth, the only objects that can appear as 
    crescents are the Moon and Venus. I can't think of anyway to get the water 
    foreground in the same image if it's Venus, so we have to assume it's the 
    Moon. We now have a scale. Figuring about 16' for the semi-diameter of the 
    Moon, the altitude of the Lower Limb is about the same, 16 minutes of arc. At 
    that altitude, it is physically impossible for the Moon to have a perfectly 
    circular outline. It should be flattened by refraction. Yet it's perfectly 
    circular. This is the killer.
    
    3) Finally, there are no craters. At this scale, you will always find craters 
    and isolated mountain peaks visible near the Moon's terminator.
    
    In late spring 2006, the various "urban legend" sites wrote this up, too. 
    Try here: http://www.snopes.com/photos/natural/northpole.asp 
    And here: http://www.hoax-slayer.com/north-pole-moon.html 
    And also NASA's APOD site here: 
     http://antwrp.gsfc.nasa.gov/apod/ap060620.html
    
    -FER
    
    
    
    
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