  We present an investigation of the open cluster Trumpler 2 using Gaia DR3
photometric, astrometric and spectroscopic data. 92 stars were identified as
likely members of the cluster, with membership probabilities greater than 0.5.
The mean proper-motion components of the cluster are derived as
($\mu_{\alpha}\cos \delta$, $\mu_{\delta}$)=($1.494 \pm 0.004$, $-5.386 \pm
0.005$) mas yr$^{-1}$. By comparing the Gaia based colour-magnitude diagram
with the PARSEC isochrones scaled to $z=0.0088$, age, distance modulus and
reddening are simultaneously estimated as $t=110 \pm 10$ Myr, $\mu=10.027
\pm0.149$ mag and $E(G_{\rm BP}-G_{\rm RP})=0.452\pm 0.019$ mag, respectively.
The total mass of the cluster is estimated as 162 $M/M_{\odot}$ based on the
stars with membership probabilities $P > 0$. The Mass function slope is derived
to be $\Gamma = 1.33 \pm 0.13$ for Trumpler 2. This value is in a good
agreement with that of of Salpeter. Galactic orbit analyses show that the
Trumpler 2 orbits in a boxy pattern outside the solar circle and belongs to the
young thin-disc component of the Galaxy.
