BD+61 degrees 2213: an interesting ellipsoidal or eclipsing variable in the open cluster NGC 7160

Light variability of BD+61 degrees 2213, first suspected more than 20 years ago, is confirmed on the basis of observations from three observatories. T he light of BD+61 degrees 2213 apparently Varies with a period of 1(d).2028 251 and a double-wave light curve. Five available radial velocities of the star also define a large-amplitude curve with the same period. The star is, therefore, a binary as suspected earlier. We conclude, however, that it is more probably an ellipsoidal variable than an eclipsing binary. Its furthe r spectral and photometric monitoring is desirable, especially since an acc urate detemination of its physical elements could also improve the knowledg e of the distance of the NGC 7160 cluster.