Abstract:
We present results of time series photometry to search for variable stars in the field of metal-poor glob-
ular cluster NGC 4590 (M68). Periods have been revised for 40 known variables and no significant
changes were found. A considerable change in Blazhko effect for V25 has been detected. Among nine
newly discovered variable candidates, 5 stars are of RRc Bailey type variables while 4 stars are unclassi-
fied. The variable stars V10, V21, V50 and V51 are found to be cluster members based on the radial veloc-
ity data taken from literature.