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Two Totally Unique Star Systems Discovered

esocid writes "Astronomers have spied a faraway star system that is so unusual, it was one of a kind — until its discovery helped them pinpoint a second one that was much closer to home. In a paper published in a recent issue of the Astrophysical Journal Letters, Ohio State University astronomers and their colleagues suggest that these star systems are the progenitors of a rare type of supernova. In research funded by the National Science Foundation, they found a star system that is unusual, because it's what the astronomers have called a 'yellow supergiant eclipsing binary' — it contains two very bright, massive yellow stars that are very closely orbiting each other. In fact, the stars are so close together that a large amount of stellar material is shared between them, so that the shape of the system resembles a peanut."

2 of 141 comments (clear)

  1. I'm disappointed by morethanapapercert · · Score: 3, Informative

    Despite the obvious importance of his work to a celestial arrangement of this kind, the article doesn't refer to Edourad Roche or the Roche Lobethat forms in the region between these two stars. When Roche Lobes overlap, it is a Contact Binary

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  2. Re:Two? by Minwee · · Score: 4, Informative

    It seems for English speakers, uniqueness is not binary.

    I'm puzzled by the thought that it should be.

    Let's see what my old friends George and Charles Merriam and Noah Webster have to say on the subject:

    "Many commentators have objected to the comparison or modification (as by somewhat or very) of unique, often asserting that a thing is either unique or it is not. Objections are based chiefly on the assumption that unique has but a single absolute sense, an assumption contradicted by information readily available in a dictionary. [...] In modern use both comparison and modification are widespread and standard [...]"