Deep optical and homogeneous photometric data on the NGC 6910 region were obtained with 104-cm Sampurnanand telescope covering a ∼ 24 × 24 arcmin2 field, we study the physical properties of cluster and the effect of its massive star to nearby regions. The estimated age and galactocentric distance of the target cluster is determined as 4.5 Myr and 1.72 ± 0.08 kpc, respectively. We have found that the cluster radius is 5.5 arcmin with a core radius of 1.4 arcmin and is 4.5 Myrs old. The MF slope of the cluster region is obtained to be shallower than the Salpeter value, indicating the existence of more number of massive stars compared to the low mass stars in the cluster. This argument hints the effect of mass segregation. A comparison of the cluster age (i.e., ∼4.5 Myr) against its dynamical relaxation time (i.e. ∼6.5 Myr) suggests that the cluster is not relaxed yet, and the observed mass-segregation seen in this cluster is may be the imprint of star-formation processes in the region. We have found the the massive star in the cluster is influencing its surrounding medium and there are signatures of the formation of very young and embedded massive stars in its proximity.
PhD student at DSB, Kumaun University