XMM-Newton (left) and infrared (2MASS, J band, right) image of the region around AX J1910.7+0917. We show the error circles (green) associated with the determined positions in the 2 XMM-Newton observations for the Epic-pn and Epic-MOS2 cameras, and the best adopted source position (red circle, error 2′′ at 90% c.l.). We also show in blue the previously determined ASCA position (only slightly outside the XMM-Newton error circle) and the closest 2MASS and USNO-B1.0 counterparts discussed in Sect. 2.1.5 (see the electronic version of the paper for the colored picture).