  In fulfilling the aims of the planetary and asteroseismic research missions,
such as that of the NASA Transiting Exoplanet Survey Satellite (TESS) space
telescope, accurate stellar atmospheric parameters and a detailed chemical
composition are required as input. We have observed high-resolution spectra for
all 848 bright (V<8 mag) stars that are cooler than F5 spectral class in the
area up to 12 deg surrounding the northern TESS continuous viewing zone and
uniformly determined the main atmospheric parameters, ages, orbital parameters,
velocity components, and precise abundances of up to 24 chemical species
(C(C2), N(CN), [O I], Na I, Mg I, Al I, Si I, Si I, Ca I, Ca II, Sc I, Sc II,
Ti I, Ti II, V I, Cr I, Cr II, Mn I, Fe I, Fe II, Co I, Ni I, Cu I, and Zn I)
for 740 slowly rotating stars. The analysis of 25 planet-hosting stars in our
sample drove us to the following conclusions: the dwarf stars hosting high-mass
planets are more metal rich than those with low-mass planets. We find slightly
negative C/O and Mg/Si slopes toward the stars with high-mass planets. All the
low-mass planet hosts in our sample show positive $\Delta$[El/Fe] versus
condensation temperature slopes, in particular, the star with the large number
of various planets. The high-mass planet hosts have a diversity of slopes, but
in more metal rich, older, and cooler stars, the positive elemental abundance
slopes are more common.
