How to choose correct resolution for model?

[Polaris]

Hi all,

I am going to print some part of Earth's surface with mountains. But STL model is too large, around 200 MB.
I need to reduce resolution there.

Which distance should be between vertexes of mesh?

For example, I want print it with resolution 0.1 mm.
In STL file distance between vertexes should be also 0.1 mm or more or less?

Thanks

[mattsmith11]

take help from professionals

[Susanne]

What kind of 3D printer you are using?