came up with a dirty fix because the mod wasn't working at all for me with Fracken' Universe, More Planet Info, Fullscreen Starmap 1920 x 1080p, and a bunch of others that *shouldn't* have messed with it (but you know, might have).

in PlanetDistanceChanger.lua I changed lines 18 to 20 from this:

local tmpPos = widget.getPosition("showBookmarkList");
tmpPos[1] = tmpPos[1] + 15;
tmpPos[2] = tmpPos[2] + 5;

to this:

local tmpPos = widget.getPosition("close");
tmpPos[1] = tmpPos[1] - 150;
tmpPos[2] = tmpPos[2] - 25;

and that relocated the slider to the right top of the screen.

then to see if I could mess with the zoom I changed line 11 from this:

widget.setSliderRange("viewRadius", 0, 200);

to this:

widget.setSliderRange("viewRadius", 0, 500);

and made the zoom a bit better for me. In star systems the right 8th of the bar doesn't zoom in further, but that doesn't bother me.

the file is in Steam\steamapps\workshop\content\211820\1232116493 if you want to try this yourself, just back that file up somewhere, unpack it (google "unpack mod starbound") and the rest is finding and opening a file in a text editor, and copy/pasting.

I'm not saying it will work for you, I'm just saying it worked for me.

This is free info btw, do anything with it, I don't care. Not an expert here, have no experience in starbound modding or writing lua code, I just picked it up from a few google searches and what I already knew from coding in other languages/modding other games, don't blame me if attempting this edit burns your house to the ground.