False positive cluster at (l = 12.841°,b = 0.544°) caused by surface brightness. The panels on the left show the catalogue data and the panels on the right the corresponding on K band images. The red points are the UKIDSS sources classified as non-stellar and brighter than 17^m in the K band. The blue circles mark the cluster members given by the algorithm. The blue points are sources listed in 2MASS but not in UKIDSS GPS. Image orientation is North up and East left.