387 Aquitania and 776 Berbericia: two slow spinning asteroids with rotation periods of nearly one day?

The minor planets 387 Aquitania and 776 Berbericia were observed photoelectrically during their opposition approach in 1977, using the 61 cm Bochum-ESO tclescope at the European Southern Observatory, La Silla, Chile. Previously no detailed photoelectric observations with respect to lightcurves or rotation rates of either object had existed. For 387 Aquitania a period of rotation of P=24 ()+0h.1 1d()oo+0d()()4 is the most probable one. A rotation rate of P is possible, too, but not very likely. The lightcurve amplitude is at least Am > . For 776 Berbericia we get a rotation rate of p=23h0+0h1 =0d958+0d004 with a minimum lightcurve amplitude of Am > at least; assuming primary and secondary extrema identical in shape and levels also a rotation period of P= 15h3 is possible, but not likely, too. Both objects, 387 Aquitania and 776 Berbericia show spin rates nearly compatible with a one day rate; because of the difficulty to cover the complete lightcurve by continuous measurements and to secure a well defined period we suggest both objects to be observed with high priority within an organized worldwide observing program. Key words: asteroids - minor planets - lightcurves - photoelectric photometry - rotation rates - 387 Aquitania, 776 Berbericia