Hello Supreme,
After going back and reading through the issue again, I realized that I had miss understood your problem. I have an example of how to show a health bar for each planet that may help you get started. I hope this helps.
Please note that any changes you need to make to the health bars will need to be done in the planet blueprint by pulling off of the variable that is used to represent your widget (in my case New var).
Example:
Planet Blueprint:
My Character Blueprint:
Make it a great day