Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
Sagittarius [sædʒɪˈtɛərɪəs] n Стреле́ц#
he is Sagittarius он - Стреле́ц
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.
Русский: