Comet C/2001 Q4 NEAT was discovered by the automated "Near Earth Asteroid Tracking" telescopes in August of 2001. This comet reached naked eye visibility in May of 2004 above the Western horizon at sunset. Comets consist of frozen volatiles and dust left over from the period of planetary formation some 4.6 billion years ago. Comets are sometimes referred to as "dirty snow balls". They are gravitationally bound to the sun and have orbital frequencies of 3.3 years to hyperbolic (never to return!). As a comet approaches the sun it brightens as it heats up and sheds water, carbon dioxide and numerous ion species. Predicting the brightness is difficult and has led to numerous dissapointments such as Kahoutek, or Halley. In 1997, Hale Bopp was a spectacular visible sight for many months. The dust of comets are associated with periodic meteor showers. Canon 10D, 70mm telephoto at f/4, 11 x 1min, tracked, Divide CO, May19,2004.