At present, the rate of axial precession corresponds to a period of 25,772 years,N. Capitaine et al. 2003, p. 581 expression 39 so sidereal year is longer than tropical year by 1,224.5 seconds (20 min 24.5 s, ~365.24219*86400/25772).
at preSeNt tHe rAte of AXiaL preCESsiOn corresPOnds to A perIod Of 25772 YearSn cApitAine eT al 2003 p 581 expreSsioN 39 sO sidereal yeAr is longer Than tropIcaL year BY 12245 seCoNDS (20 MiN 245 s ~36524219*86400/25772)