• The sun would be 1/10000 the brightness as seen from Earth, making it largely indistinguishable from the background. And the 1000 year "year" would preset a real challenge to any would be astronomers out there...

  • Do you mean for putative astronomers on that object?

    Yes, obviously it is probably held to our sun in a rather tenuous way--doesn't it just mean that it's more subject to our sun's gravity than to that of anything else (including a hypothesised large planet)?

    Do we really have much of an idea what happens in the outer reaches of our/any solar system?

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