The Cherokee Rattlesnake Prophecy, also called the Chickamaugan Prophecy, is part of the Cherokee prophesies of 1811 made by “Charlie” and two women of the Cherokee tribe. They had visions in early February of 1811 near Rocky Mountain in Georgia. These prophesies are all over the internet, and from what I can gather, they were originally documented by missionaries and then finally published in 1993 in the American Indian Quarterly .
The Rattlesnake Prophecy contains reference to planets and stars, and shows similarities to Mayan astronomy, with emphasis on Venus and Jupiter, Orion and the Pleiades. Their calenders were similar, both apparently marking 2012 as a major cross over point. I will go through some of the detail and see how it relates to modern astronomy and astrology. You can see the entire Cherokee Prophesies at Crystalinks .