TX Cnc is a member of the young open cluster NGC 2632 .
In the present paper , four CCD epochs of light minimum and a complete V light curve of TX Cnc are presented .
A period investigation based on all available photoelectric or CCD data showed that it is found to be superimposed on a long-term increase ( dP / dt = +3.97 \times { 10 ^ { -8 } } days/year ) , and a weak evidence suggests that it includes a small-amplitude period oscillation ( A _ { 3 } = 0. ^ { d } 0028 ; T _ { 3 } = 26.6 years ) .
The light curves in the V band obtained in 2004 were analyzed with the 2003 version of the W-D code .
It was shown that TX Cnc is an overcontact binary system with a degree of contact factor f = 24.8 \% ( \pm 0.9 \% ) .
The absolute parameters of the system were calculated : M _ { 1 } = 1.319 \pm 0.007 M _ { \odot } , M _ { 2 } = 0.600 \pm 0.01 M _ { \odot } ; R _ { 1 } = 1.28 \pm 0.19 R _ { \odot } , R _ { 2 } = 0.91 \pm 0.13 R _ { \odot } .
TX Cnc may be on the TRO-controlled stage of the evolutionary scheme proposed by Qian ( 2001a , b ; 2003a ) , and may contains an invisible tertiary component ( m _ { 3 } \approx 0.097 M _ { \odot } ) .
If this is true , the tertiary component has played an important role in the formation and evolution of TX Cnc by removing angular momentum from the central system ( Pribulla & Rucinski , 2006 ) .
In this way the contact binary configuration can be formed in the short life time of a young open cluster via AML .