I'm looking at the south eastern sky in denver colorado, and i'm seeing a crescent shaped multi-colored object that appears to be flashing (i'm using a MEADE MA25mm lense, small in power but still i can see this thing pretty clearly). it is just to the bottom left of orion and to the lower right of the moon (at approx. 9:00pm MST). It is very bright and visible with the naked eye, and appears to be "twinkling" as I've been told planets do not. It's distance from two bottom most prevelent stars of orion (almost in a straight line from) has remained constant through the evening as well. What is this thing?