This will be a very basic guide to finding and deleting a planet from your save. These steps can be used to generate new ore on an asteroid belt or even test for mod compatibility.

We need to do some work in the game to properly locate our world that we wish to remove.

The first step is finding where you are in the galaxy, all planet files are generated using two main things the solar system cords and the relevant ring from the sun. Follow the steps below to get your cords.

1. Access your ship seat.
2. Click the icon with the map marker that says coordinates.
3. Wright down your cords in a document make sure they are all correct.

Next thing you need to do is count what ring the planet is on start with the number 1 for the first ring closet to the sun and count to the outer ring like 1, 2, 3, and so on.

Add this number to your document below your cords.

Now if your planet is on say a moon or is a moon of a gas giant then you will need to count how many rings out from the main planet it at too, make sure you type this number below the solar system ring number.

First thing you need to do is go to the path below.
\Steam\steamapps\common\Starbound\storage\universe

Now type your cords into the search bar for the folder and all relative cords for the solar system should come up. We will be using the cords below.

-507549053 (for x)
983867515 (for y)
-248555443 (for z)

"windows search should look like below."
-507549053 983867515 -248555443

If you have explored all of the planets then you will want to find the planet with the ring numbers you have listed below.

For example
We have a solar system with 7 rings Our planet is on the 6th ring and is orbiting a gas giant on the 2nd ring, the id should look like something below

-507549053_983867515_-248555443_6_2
(6 is the solar system ring | 2 is the planet ring)

Another example would be for a planet on the first ring of the solar system.
-507549053_983867515_-248555443_1
(1 is the solar system ring.)

Only delete the .world file for the planet you wish to remove. do not delete the .system file, I am not sure what would happen if you deleted the .system file so don't do it.

The last thing you want to do is load your game again and teleport down to the planet and you should have a new generation on your planet.