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ʻOumuamua is an apparent interstellar object passing through the Solar System. It was discovered on a highly hyperbolic orbit by Robert Weryk on October 19, 2017 with observations made by the Pan-STARRS telescope when the object was 0.2 AU from Earth. Initially thought to be a comet, it was reclassified as an asteroid a week later. It is the first of a new class called hyperbolic asteroids.