DG Ari (ASAS J025521+1539.4) is a variable star that was found in the search of binary stars with periods longer than 30 days in ASAS catalogue . The source shows two periodic component in its light curve. We estimate both, the orbital period, and the long-term cycle using PDM. Additionally, we present a match with the soft X-ray source 1RXSJ025521.3+153951 located at similar position. According with these results, we discuss about its nature as a RS CVn candidate.