Drag Along a Circular Axis

Hello, everyone.
Im new to coding and Corona SDK and Lua and I’m self teaching myself to program. I need a code to allow the player to drag (with their finger) an object around a circular object. The two objects need to be touching the entire time. I would greatly appreciate if someone could help me out.
Thanks :slight_smile: [import]uid: 208120 topic_id: 34732 reply_id: 334732[/import]