https://drive.google.com/open?id=1zhhJOzph6tYksekCNWc45u6zc0k-ux7Imy noise texture for the hyperspace storms
note: to calculate size of picture i use divider, by 200 for the map x,y sizes
so e.g. 2560x1440 texture equals approx
"sectorWidth":512000
"sectorHeight":288000
the size of map can be +- 5% then as there is some overlap buffer
i got more resolutions but those are large unprocessed PNGs
while those available for download are already shrinked PNG
also from my observation, it's best if the x,y can be divided by the sector cell size
(and in case of this example those sectors can be divided by sector (stars) count too)
constellation cell size has effect on the density (and thus number) of those on resulting map
"sectorWidth":288000,
"sectorHeight":192000,
"GrandSectorCellSize":3000,
"GrandSectorConstellationCellSize":7,
"GrandSectorCount":1024,
"GrandSectorRndArcs":64,
texture used for hyperspace then was 1440x960