  In this study, the structural and basic astrophysical parameters of the
poorly studied open cluster Berkeley 6 are calculated. Analyses of the cluster
are carried out using the third photometric, spectroscopic, and astrometric
data release of Gaia (Gaia DR3). The membership probabilities of stars located
in the direction of the cluster region are calculated by considering their
astrometric data. Thus, we identified 119 physical members for Berkeley 6. The
colour excess, distance, and age of the cluster are determined simultaneously
on the colour-magnitude diagram. We fitted solar metallicity PARSEC isochrones
to the colour-magnitude diagram by considering the most probable member stars
and obtained $E(G_{\rm BP}-G_{\rm RP})$ colour excess as 0.918$\pm$0.145 mag.
The distance and age of the cluster are determined as $d=2625\pm337$ pc and
$t=350\pm50$ Myr, respectively.
