I feel kinda sorry for the astronomer who discovered what he thought was a planet in orbit around Barnard's Star. While he may have wound up with bupkis, there's some possibility that he'll be vindicated. Dunno if anyone has tried with the latest and greatest technology (other than the Hubble ST). Gliese 793 was found to have a similar wobble using the same equipment, so Barnard's Star's wobble is generally believed to have been a problem with the mechanism of the instrument itself, rather than an actual slight wobble of the star. It would be amusing if Gliese 793 and Barnard's star both wound up having planets detected around them. :')
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