Rita Mann has cast her eyes skyward and found something previously unseen: a binary star-disc system with two distinct areas of mass capable of forming a pair of planetary arrays. Sounds good, but what does it mean? Put simply, the University of Victoria grad, now a PhD student at the University of Hawaii's Manoa Institute for Astronomy, spotted two stars about 1,300 light years from Earth that are linked by gravity and orbit a common centre. The unusual thing is that each star is surrounded by a distinct ring of substances with enough mass to form planets like those in our own solar system.
Two University of Hawaii at Mānoa astronomers have found a binary star-disk system in which each star is surrounded by the kind of dust disk that is frequently the precursor of a planetary system. Doctoral student Rita Mann and Dr. Jonathan Williams used the Submillimeter Array on Mauna Kea, Hawaii to make the observations. A binary star system consists of two stars bound together by gravity that orbit a common center of gravity. Most stars form as binaries, and if both stars are hospitable to planet formation, it increases the likelihood that scientists will discover Earth-like planets. This binary system, 253-1536, stands out as the first known example of two optically visible stars, each surrounded by a disk with enough mass to form a planetary system like our own. It lies 1,300 light-years from Earth, in the famous Orion Nebula, the kind of rich cluster of stars that is a common birth environment for most stars in our Milky Way galaxy, including our sun.