Bowe try clinches victory for Ospreys
Wales and British Lions back Henson was making his first appearance in Swansea since January 2009, but apart from a few bright moments, was unable to prevent his new side from slipping to defeat against his former team-mates.
A second-half try from Ireland wing Tommy Bowe was the crucial moment in an error-strewn match and keeps the Ospreys in second spot in the table and in firm contention for a fourth Celtic title.