This is a part of a multiwavelength study aimed at use of complementary photometric , polarimetric and spectroscopic data to achieve an understanding of the activity process in late-type stars .
Here we present the study of FR Cnc , a young , active and spotted star .

We performed analysis of ASAS - 3 ( The All Sky Automated Survey ) data for the years 2002–2008 and amended the value of the rotational period to be 0.826518 d. The amplitude of photometric variations decreased abruptly in the year 2005 , while the mean brightness remained the same , which was interpreted as a quick redistribution of spots . BVR _ { c } and I _ { c } broad band photometric calibration was performed for 166 stars in FR Cnc vicinity .

The photometry at Terskol Observatory shows two brightening episodes , one of which occurred at the same phase as the flare of 2006 November 23 .
Polarimetric BVR observations indicate the probable presence of a supplementary source of polarization .
We monitored FR Cnc spectroscopically during the years 2004–2008 .
We concluded that the RV changes can not be explained by the binary nature of FR Cnc .
We determined the spectral type of FR Cnc as K7V .
Calculated galactic space-velocity components ( U,~ { } V,~ { } W ) indicate that FR Cnc belongs to the young disc population and might also belong to the IC 2391 moving group .
Based on Li i \lambda 6707.8 measurement , we estimated the age of FR Cnc to be between 10–120 Myr .
Doppler Tomography was applied to create a starspot image of FR Cnc .
We optimized the goodness of fit to the deconvolved profiles for axial inclination , equivalent width and v sin i , finding v sin i = 46.2 km s ^ { -1 } and i~ { } = ~ { } 55 ^ { \circ } .
We also generated a synthetic V -band lightcurve based on Doppler imaging that makes simultaneous use of spectroscopic and photometric data .
This synthetic lightcurve displays the same morphology and amplitude as the observed one .

The starspot distribution of FR Cnc is also of interest since it is one of the latest spectral types to have been imaged .
No polar spot was detected on FR Cnc .