Col 70 Sector FY-N C21-3 is not Miackce. It is not even anywhere near. In the old FFE aka Elite3 Galactic co-ordinate system, where all stars in the Galaxy are more or less in the same plane and the Y-axis runs directly north through Polaris, Polaris was 0,76 and Miackce was 37,144. That places Miackce somewhere beyond the general direction of Polaris from Sol. Col 70 Sector FY-N C21-3 is in the opposite direction to Polaris from Sol. What is more Col 70 Sector FY-N C21-3 is a T Tauri star, whilst Miackce was a Type K orange star.
I wonder where you come by your information?
If anyone thinks they have found Miackce, last I heard more than 20 years ago now the system configuration was as follows:
Miackce - Type K orange star
Miackce 1 - Pink/orange world with brownish atmosphere
???? - Thargoid station
???? - Thargoid shuttle
Miackce 1a - Oblate rock
Miackce 2 - Brown rocky planet
Miackce 3 - Orange/brown gas giant
Miackce 3a - Brown rocky world
Miackce 3b - Brown rocky world
Miackce 3c - Brown rocky world
Miackce 4 - Brown rocky planet
Miackce 5 - Orange/brown gas giant
Miackce 5a - Brown rocky world
Miackce 5b - Brown rocky world
I've worked out some co-ordinates of my own, assuming that the FFE co-ordinates for Polaris and Miackce are accurate even though the distance of Sol-Polaris is given as 607.06 L-y in FFE, instead of 432.58 L-y in ED. And assuming that Miackce is in the same plane as Sol-Polaris-Sag A, just as it was in FFE. I'll be looking for an orange star system of the above configuration in the region, then search down towards the Galactic equatorial plane.
But first I want a cargo Inventory and complete list of Sub-Targets for the Unknown vessel hyperdicting Commanders in the Pleiades/Aries Dark Region Sectors. No one else encountered by the Unknown vessel seems to have thought to acquire such information during the encounter.
I attempted a similar exercise some time last year. You have highlighted the main obstacles:
1. Different representation of distance between Sol and Polaris
2. FFE galaxy model is pretty much a flat disc with a comparatively small variance in off plane distances
3. Assumption that Miacke exists in ED and has the same make up of planets/moons as in FFE
In spite of this I attempted a conversion from the FE2 -> ED coords and searched K star systems in the candidate area ... I didn't find a system that looked like a match. But given the variance in the galaxy models I couldn't claim my candidate area was any more legit than pin sticking. At the end of the day it gave me a good excuse to try out the explorer fit in my newly purchased Asp.