THE VISUAL COMPANION OF THE CLASSICAL CEPHEID FF AQL

CCD photometry of the visual companion of the Cepheid FF Aql is presen ted. The magnitude and colors of the companion are V=11.14 +/- 0.07 ma g, B-V=0.60+/-0.05 mag, and V-R=0.39+/-0.04 mag. The separation is 6.' '89+/-0.''18 and the position angle 143.9-degrees +/- 2-degrees. The c ompanion is too bright and/or too red to be a Zero-Age Main-Sequence s tar at the distance of the Cepheid with the observed color, whether th e Cepheid is pulsating in the fundamental mode or the first overtone. Only if the errors in the color are underestimated can the companion b e a member of the FF Aql system. (Contamination by the Cepheid would m ake the companion brighter and redder.) Positional measurements show a pparent motion which is too large to be orbital motion. Thus, it is no t likely that the 6'' companion is physically associated with the Ceph eid FF Aql.