Figure 5. An illustration of the variations in shape and amplitude found in the R_c-band light curve of GRO J0422+32 in quiescence, folded using the ephemeris given in Fig. 4. Panel a (top) shows the light curve observed on 1994 November 11 and 28 and on December 1. Panel b (middle) shows the light curve obtained on 1994 November 29 and 30. Note the low amplitude modulation on those two nights. Panel c (bottom) shows the light curve observed on 1994 December 3 and 6 and 1995 February 1 and 2. Individual data points are shown as dots while the crosses are the result of averaging the curve into eight bins. Vertical bars represent the errors on the bin means.