  Based on 2MASS J and Ks photometry for the open star clusters NGC 2383, NGC
2384,Pismis 6, Pismis 8 and using color magnitude diagrams with isochrones fit,
we found an age of $\log ({age})$ = 8.3 (200 $\pm$ 6 Myr) for NGC 2383 and
$\log ({age})$ = 6.9 (8 $\pm$ 6 Myr) for NGC 2384. For Pismis 6 and Pismis 8 we
adopted a range of $\log ({age})$ = 6 - 7 (1 - 10 Myr). Because they similar
ages, Pismis 6 and Pismis 8 may have been formed in the same Giant Molecular
Cloud, and we concluded they are a good candidate for a binary system. In the
case of NGC 2383 and NGC 2384, because the big age difference found we conclude
that most probably they are born in different environments and as well are not
physically connected.
