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Paper text:
fr cnc is a by dra type star , showing its light variations ( 017 ) , caused , as assumed , by the presence of star - spots and axial rotation @xcite .
very recently golovin , a. , pavlenko , e. , kuznyetsova , yu . and krushevska , v. @xcite detected the first ever - observed large optical flare ( 102 in b - band , 049 - v - band , 021 - r - band , 014 - i - band ) at crao .
fr cnc has unusually short ( for such class of objects ) rotational period of 0.@xmath58267 . as it was shown in @xcite , short rotational period
allow to expect large flare activity in the star .    in the aim to detect other flares in this object
, we decided to continue photometrical monitoring of fr cnc .
observations were carried out by the authors at crao during 4 nights on november , 2006 with the help of 38-cm cassegrain telescope and sbig st-9 ccd camera , as well as in terskol observatory during 7 nights in march , 2007 using 0.29-m telescope and apogee-47 alta ccd camera ( see table 1 for log of observations ) .
all observations were done in b - band as far as the flare amplitude is increasing with decreasing of the wavelength .
the duration of each observational run varies from 2 to 7 hours .
calibration process of the obtained frames , comparison and check stars are remain the same as described in @xcite .
the obtained lightcurve during the course of fr cnc monitoring in march , 2007 , folded with fr cnc rotational period of 0.8267 days , is shown in fig . 1 .
as it is clearly seen , one - humped 017 variations with the rotational period are clearly distinguishable , while no flares were detected that could imply that flares is a rare event for fr cnc and makes this object even more interesting for follow - up observations . taking into account large amplitude of the flares in short wavelengths ,
b - band would be recommended , nevertheless , multicolour ccd photometry is highly valuable as well .
this work was partly supported by science & technology center in ukraine , grant # 4134 .
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being excited by the detection of the first ever - observed optical flare in fr cnc , we decided to continue photometrical monitoring of this object . 
 the observations were carried out at crimean astrophysical observatory ( crimea , ukraine ; crao - hereafter ) and at the terskol observatory ( russia , northern caucasus ) . 
 the obtained lightcurves are presented and discussed . 
 no distinguishable flares were detected that could imply that flares on fr cnc are very rare event .    
 @xmath0kyiv national taras shevchenko university , kyiv , ukraine + @xmath1main astronomical observatory of national academy of science of ukraine , kyiv , ukraine + @xmath2international center for astronomical , medical and ecological research of nasu + @xmath3 terskol branch of institute of astronomy ras , russia + @xmath4crimean astrophysical observatory , crimea , nauchnyj , ukraine + astronom_2003@mail.ru , astron@mao.kiev.ua