Solar system 'SDF640' is a dual star system that comprises the
stars 'SDF640.A' and 'SDF640.B' and the retinue of celestial objects gravitationally bound to them:
0 planets and their moons, as well as
asteroids, meteoroids, planetoids, comets, and interplanetary dust.
The principal components of this star system are the stars 'SDF640.A' and 'SDF640.B' that dominate it gravitationally.
'SDF640.A' is a yellow giant class star that contains about 95% of the system's known mass,
'SDF640.B' is a red giant class star that contains about 4% of the system's known mass.
System 'SDF640' is located more than 1301 lightyears from the center of the galaxy.