OGLE-2013-BLG-0723LBb is a Venus mass world orbiting an old brown dwarf, orbiting itself a low mass star, it can be seen as a missing link between a planet and a moon (A. Udalski & al. 2015) The ground is a radar view of Venus surface by Magellan probe. The bright red star is the red dwarf OGLE-2013-BLG-0723LA and the dark disc is the brown dwarf OGLE-2013-BLG-0723LB. The starry background is a view from earth of the center of our Milky Way, the region where this system belongs.