The source does include the 'Mass', but it's the same with 'Msini'. What should I do in this case?If in the sources 'Mass' is specified, you should use it. SpaceEngine does not always calculate the mass correctly from 'Msini'.
Ah, I see. I did included some addons, and one of it is DoctorofSpace's Interstellar mod ... perhaps it's because the mod adds the Gargantua system in game.have you included some mod or addon? It usually changes the seed for procedural creation