We report on the first UBVRI CCD photometry of three poorly known
star clusterings in the region of eta Carinae: Bochum 9,
Bochum 10 and Bochum 11.
We found that they are young, rather poor and loose
We argue that Bochum 9 is probably a small and loose open
cluster with about 30 probable members
having E(B-V) = 0.63 ± 0.08, located 4.6 kpc far from the Sun,
beyond the Carina spiral arm.
Similarly, Bochum 10 is a sparse
aggregate with 14 probable members having E(B-V) = 0.47 ± 0.05
and at a distance of 2.7 kpc from the Sun.
Finally, Bochum 11 is a less than 4 x 106 yrs
old cluster for which we identify 24 members.
It has a reddening E(B-V) = 0.58 ± 0.05,
and lies between Bochum 10 and 9, at 3.5 kpc from the Sun.
We propose that in the field of the cluster
some stars might be pre Main Sequence (MS) candidates.