Maybe you should have actually read the website you linked to. Direct quote:

"UPDATE FEBRUARY 19, 2010: -- We patiently waited and monitored the StarViewer Team's web site for the "proof" that claimed would be forthcoming. Needless to say, it never materialized. Also, the initial popularity of their claim appears to have been nothing more than a way to attract a large viewership. The web site now is full of ridiculous claims, including some satirical stories taken from "the onion" (a very funny site) which the SV Team promoted as "real." There is no mention of the mathematical validation that was expected with regards to the G1.9 object. Perhaps the validation disproved their theory... perhaps it was never going to be validated by anyone... I think it is safe to take this theory of object G1.9 being a brown dwarf down to ZERO possibility !"