<p><br /> An astronomical phenomenon that appears to show three suns appears above Changchun, the capital city of Jilin Province in northeast China.<br /> </p><p><br /> Two smaller suns appeared on either side of the sun, with a strong light on top.<br /> </p><p><br /> The smaller twins were about one-tenth of the size of the sun.<br /> </p><p><br /> Together with the bright light, they formed a round, rainbow-like aura around the sun.<br /> </p><p><br /> Experts said that such a phenomenon is called "phantom sun", which is an optical refraction in the atmosphere.<br /> </p><p><br /> In winter, the clouds are formed by ice crystals and they are relatively higher in the sky than in summer.<br /> </p><p><br /> When they happen to form a particular shape, they can reflect the sunshine in such a way that produces the astronomical phenomenon of "triple suns".<br /> </p>