Two-color photometry of the galaxy cluster A 2634

On the plates obtained in the Schmidt focus of the 2-meter Tautenburg telescope, B and V photometric measurements of the galaxy cluster A 2634 in a general region 2.6x2.6 have been carried out. The field galaxy density has been determined on the same plates. The cluster has a core of high galaxy density surrounded by a coronae of essentially lower density. The value of the parameter fB introduced by Butcher and Oemler for galaxies brighter than MV=-19.8 is equal to 0.07. In the cumulative luminosity function no change of slope is observed. Apparently there is a lo of flattened galaxies in the cluster