So, I am starting a world map for a project from zero. As it will be based on a hexagonal grid tile I will still work on the tilesets.

The problem is that I am aiming for something gigantic. A planet that is 1,3 times bigger than the Earth, and I want to cover it completely with hexagon tiles that are 10Km˛ each.

As it would be almost impossible to draw entirely in only one file in any program because of resolution and memory limitations, how would be my best approach to archieve this goal?

Also, I am aiming to use pixelart graphics for the tiles and information on them, something like the images on my Hello topic.