Every star is where it really is. Fly to Mars, to Proxima Centauri, to the black hole at the centre of the galaxy — at true distances, with the light-speed limit and an FTL drive for when it is not enough.

It is built at 1:1. Not something like reality — the stars are where they really are, the size they really are, and the colour they really are. The colour is not an artistic decision either: it comes from the measured B−V index, through the temperature, to the black-body colour of that temperature.

• 107,847 stars at their true positions, from the HYG database
• 6,306 exoplanets, from the NASA Exoplanet Archive
• 8 planets, 27 moons, 12 dwarf planets on real orbits, from NASA/JPL
• 21 nebulae, 4 pulsars, 3 black holes
• Every one of them can be flown to

About the concessions, honestly: you need an FTL drive, or Proxima Centauri would be a four-year trip. There is time compression too, so the planets do not stand still on their orbits. But the light-speed limit is there, and that is exactly what makes the scale felt: on the normal drive even Mars takes minutes.

What I wanted was the feel of Celestia and Stellarium, only from the inside — through the window of a cockpit rather than from above a map.