Currently located beyond the orbit of Jupiter, Comet C/2012 S1 (aka. ISON) is heading for a very close encounter with the sun next year. These types of comets are called "Sungrazers" because their hyperbolic orbits closely brush the Sun. In November 2013, ISON will pass less than 0.012 AU (1.8 million km) from the solar surface. The fierce heating it experiences could turn the comet into a bright and spectacular naked-eye object, possibly even visible during daylight.