Orpheus

S7 E4: Upon looking at drawings Daniel has made from his recovered memory - a Naquadah refinery near a Ha'tak-class vessel under construction on a planet with two moons - Rak'nor identifies the planet as Erebus currently under the rule of Goa'uld system lord Ba'al. Because Jaffa unwilling to serve the Goa'uld are brought to Erebus to be worked to death it was a logical place for Bra'tac and Rya'c to find recruits.