Astrometric agreement of M31N 2010-10f (green cross) and the GC Bol 126 in a PS1 image (left) and a HST image (right) from ACS 814 nm archive data of HST Cycle 18 proposal 12058 by Dalcanton, J. The middle image shows the PS1 difference frame in r_P1 at the peak of the nova. The GC was subtracted in this frame and the image was used to compute the position of the nova as indicated by the green crosses in this figure. All three images have the same size (FOV 9″ × 9″).