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The stellar content in and around Sh2-311 region have been studied using thedeep optical observations as well as near-infrared (NIR) data from 2MASS. Theregion contains three clusters, viz. NGC 2467, Haffner 18 and Haffner 19. Wehave made an attempt to distinguish the stellar content of these individualregions as well as to re-determine their fundamental parameters such asdistance, reddening, age, onto the basis of a new and more extended optical andinfrared photometric data set. NGC 2467 and Haffner 19 are found to be locatedin the Perseus arm at the distances of 5.0 $\pm$ 0.4 kpc and 5.7 $\pm$ 0.4 kpc,respectively, whereas Haffner 18 is located at the distance of 11.2 $\pm$ 1.0kpc. The clusters NGC 2467 and Haffner 19 might have formed from the samemolecular cloud, whereas the cluster Haffner 18 is located in the outergalactic arm, i.e. the Norma-Cygnus arm. We identify 8 class II young stellarobjects (YSOs) using the NIR $(J - H)/(H - K)$ two colour diagram. We haveestimated the age and mass of the YSOs identified in the present work and thoseby Snider et al. (2009) using the $V/(V - I)$ colour-magnitude diagram. Theestimated ages and mass range of the majority of the YSOs are $\lesssim$1 Myrand $\sim$0.4 - 3.5 \msun, respectively, indicating that these sources could beT-Tauri stars or their siblings. Spatial distribution of the YSOs shows thatsome of the YSOs are distributed around the H II region Sh2-311, suggesting atriggered star formation at its periphery.

Deep optical survey of the stellar content of Sh2-311 region