apparent visual magnitude and the observed colour of the system. The observed visual magnitude of the system was estimated by various authors in the range from 9.48 [@mendo] to 9.98mag. [@hanson]. Since the Tycho measurements include probable errors, e.g. $B_{T}$=10.224$\pm$0.030, $V_{T}$=9.568$\pm$0.024 mag, we adopt the apparent visual magnitude of 9.509$\pm$0.027mag and colour index of (B-V)=0.558$\pm$0.082mag for the system, transformed from Tycho to Johnson photometric system using the coefficients given by @hog. Taking into account the de-reddened colour index of the primary star as 0.35 mag for an F2V star and the light ratio of L$_2$ /L$_1$=0.63 we estimated de-reddened colour index for the system as 0.405 mag. Then we estimated the interstellar reddening of $E$(B-V)=0.15$\pm$0.08mag for the system. The bolometric corrections are adopted from @flo for the primary and secondary stars. The absolute bolometric magnitude of the Sun is taken as 4.74. The distance to the system is estimated as 300$\pm$50pc. The weighted mean distance calculated from the individual distances given in Table5 is 298$\pm$56pc, consistent with the distance estimated from total apparent visual magnitude and interstellar reddening of the system. As it is known that the distance measured by the $Hipparcos$ becomes inaccurate for d$>$100 pc.

V2653Oph is located, 