Hanka is the home to Cassandra. When SG7 came to the planet they didn't realise that Nirrti was in control of the planet, and due to their long term stay on the planet, Nirrti killed all the inhabitants of the planet including SG7 and left Cassandra on the planet as a Trojan Horse. However, her plans failed. Several years later, when Cassandra had grown up she was once again braught to the planet as she had developed a strange disease and wanted to go to the forest on the planet. In the forest is a laboratory of the Goa'uld Nirrti, where she experimented with the people of the planet in an attempt to create a Hok'ta which is short for Hok Tau'ri which means Super Human. With a super human as host she could rise among the system lords, however, the base was discovered by the SGC, and she was captured. This was the last that we saw of the planet.