Mersereau 2012 A is a rogue planet, discovered by Alex Mersereau. It is most likely an extra solar object.
Spacesim Missions
Spacesim is currently planning missions to Jupiter's points to conduct studies on this object, including [1] and [2] measurements.
Spacesim Findings
Parallax
A mission is currently being conducted to place an observation post in Jupiter's Lagrange points. Once this has been completed, parallax observations may be made
Blue-shift
Calculations are currently being performed on Mersereau 2012 A to determine its blueshift, using the AYSE telescope
External Links