Bruce Murray Space Image Library
Predicted path of comet C/2012 S1 (ISON)
Filed under comets, planetary astronomy
The comet will be 'chasing' the sun as both move east. After perihelion, the comet will swing hard to the north. The comet's predicted path is very precisely known; tail lengths are only guesses.
via unmannedspaceflight.com member "Gladstoner"
Original image data dated on or about September 25, 2012
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