The translations for the development version (0.10 series) have been uploaded to Rosetta:
The PO template has been split in two; the constellations names for the various sky cultures are in the “stellarium-skycultures” template now.
Since this is the development version, the strings are expected to change before the actual release. We also know that there are some strings in the “stellarium” template that should not be there -- we will try to get rid of these. The updated templates will be uploaded to Rosetta as often as possible.