UW-Madison: Images of strange solar system visitor
MADISON, Wis. — A strange object zipped through our solar system at high speeds, which gives astronomers a rare opportunity to examine an object from somewhere else in our galaxy.
Astronomers know the object as 1I/2017 U1, measures 180 meters by 30 meters. It has the shape of a fat cigar and is half a city block long.
It was first discovered by astronomers at the University of Hawaii.
“This object has considerable speed. It is not bound to the sun” like comets or asteroids native to our solar system, explains Ralf Kotulla, a University of Wisconsin-Madison astronomer. “Its orbit doesn’t take it anywhere near the major planets.”
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