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This paper presents the Charge-Coupled Device time-series photometricobservations of the open cluster NGC 1582 and its surrounding field withJohnson B, V and R filters by using Nanshan 1m telescope of XinjiangAstronomical Observatory. 19 variable stars and 3 variable candidates weredetected in a 45 {\times} 48.75 field around the cluster. 12 of the variablestars are newly-discovered variable objects. The physical properties,classifications, and membership of the 22 objects are studied through theirlight curves, their positions on the color-magnitude diagram, and with thearchival data from the Naval Observatory Merged Astrometric Dataset. Amongthese objects, 5 are eclipsing binary systems, 6 are pulsating variable starsincluding one known Delta Scuti star and one newly-discovered RR Lyrae star.The distance of the RR Lyrae star is estimated to be 7.9 {\pm} 0.3 kpc,indicates that the star locates far behind the cluster. 4 variable stars areprobable members of the cluster, and 13 of the 22 objects are confirmed to befield stars.

A study of variable stars in the open cluster NGC 1582 and its surrounding field