Rotate Blue image every 5 degree

[AmazingGimp]

(12-19-2019, 08:02 AM)Ofnuts Wrote: To create a circular path with a 85px radius, you

1. Create a new path, with a single segment that is 85px long and starts at the center of the circle (or is 170px long and is a diameter of the future circle)
2. In the Path list, right-click on it and use Shapes>On segments>Circles

What is the best way of creating the path at center?
- Do i use 50/50 guides?
- based on the canvas size, find mid X,y and somehow move the mouse until the coordinates show the desire xy.
- or is there a function after I draw this 85px straight line, can I say position it to center?

Sorry, for the basic question. 
Happy holidays everyone.