Quite a few links floating around for this.
http://www.neogaf.com/forum/showthread.php?t=766283 seems a reasonable summary, unless you have access to the journal
Nature.
WISE J031300.36-670839.3
RAJ2000 03 13 00.366
DEJ2000 -67 08 39.38
W1mag 12.534 mag WISE/W1 magnitude Red values correspond to upper limits (S/N<2) (3.35um) (phot.mag;em.IR.3-4um)
With that magnitude quite a few IISers should be able to spot it.