Measured distance toward the north large-scale cloud. The left panel shows the MWISP ¹²CO intensity image. The black contour shows the edge of molecular cloud (3 σ threshold), while red and blue dots represent on- and off-cloud Gaia DR 3 stars. In the right bottom panel, red and blue points represent on- and off-cloud stars (binned every 5 pc), respectively. The dashed green line is the modeled extinction A_G. The distance is derived with raw on-cloud Gaia DR3 stars, which are represented with gray points. The black vertical lines indicate the distance (D) estimated with Bayesian analyses and Markov Chain Monte Carlo (MCMC) sampling, and the shadow area depicts the 95% highest posterior density (HPD) distance range. The plots of the MCMC samples are displayed in the right top panel (distance, the extinction of foreground and background stars and uncertainties). The mean and 95% HPD of the samples are shown with solid and dashed vertical lines, respectively.