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サマリー
あらすじ・解説
Comet C2/2015 V2 Johnson was discovered by my Catalina Sky Survey teammate Jess Johnson on November 3, 2015. It travels on a hyperbolic path around the Sun which is highly inclined to the plane where the planets and most of the asteroids travel. Jess's comet's path takes it from deep space into the inner solar system slightly further from the Sun than the planet Mars. Although it will not get closer to the Earth than about 75 million miles it may out gas enough material to make it visible to the naked eye. Observers in the northern hemisphere will have their best chance to view Comet Johnson in April and May of 2017 while those south of the equator will be able to observe it until early 2018. Jess's Comet will come closest to the Sun in June of 2017 and then be slung into deep space by the Sun's Gravity. In February of 2037 Jess's comet will be further than Pluto's average distance to the Sun and be invisible to human telescopes as it moves in the direction a star 417 light years away in the constellation of Eridanus. It will take more than 12 million years to get to the vicinity of that distant star.