Comparison between our result for DC 3 members and that from Dias et al. (2021), and the orbit of DC 3 in galactocentric coordinates calculated in this work. In panels a-d the yellow dots represent the member stars of DC 3 with P_m > 0.5 in this work, the magenta triangles and blue squares are respectively the BSs and pBSs identified in this work, and the gray circles are the cluster members from Dias et al. (2021) with member probabilities over 0.5. Panel a: spatial distribution for the cluster members and identified blue straggler candidates. b: proper motion distribution of cluster members and identified blue straggler candidates. c: parallax distribution for cluster members and identified blue straggler candidates. d: CMD of DC 3. e: orbit of DC 3 in Galactocentric coordinates projected in the R-Z plane, where The red star represents the present-day position.