Treyarmus

Mass Effect & Mass Effect 3
Treyarmus is a hydrogen-helium gas giant with a powerful magnetic field, making it a popular discharge site for freighters working the Anansi-Ishtar shipping route.

It is popular enough, in fact, that quarian ships can often be found loitering in orbit, selling the freighter crews cheap refreshments, salvage, and odd craftworks assembled by their children. There are no ships in orbit at present, however.