A Gaia-based Photometric and Kinematic Analysis of the Old Open Cluster King 11

This paper presents an investigation of old age open cluster King 11 using Gaia's Early Data Release 3 data. Considering the stars with membership probability (Pμ) > 90%, we identified 676 most probable members within cluster's limiting radius. The mean proper motion for is determined as: μx = − 3.391 ± 0.006 and μy 0.660 0.004 mas yr−1. blue straggler show a centrally concentrated radial distribution. values radius, age, distance are as 1851, 3.63 0.42 Gyr, 3.33 0.15 kpc, respectively. apex coordinates (A 26784 101, D 2748 103) diagram method verified (μU, μT) diagram. We also obtained orbit that follows in Galaxy estimated its tentative birthplace disk. resulting spatial velocity 60.2 2.16 km s−1. A significant oscillation along Z coordinate up to 0.556 0.022 kpc determined.