With the Helios Star System, what does it exactly mean by 'Everything to do with astrophysics'?
By that I mean everything I have calculated about the planets and stars of the Helios System, from a physics (this branch being called astrophysics) angle.
All the things I’ve calculated for all are:
Radii/Diameters
Luminosity of the star aka Helios
Hill Sphere (the closest an object can orbit without being pulled in by the larger objects gravitational pull)
Mass
Gravity
Average surface temperature + Core temperature of Helios
Orbit radius (distance from star)
Orbital period (length of year)
Orbital speed (how fast it moves along its orbit)
Bond Albedo (how much light is reflected by the surface)
Average density of the planets
Water % on surface (for most)
Surface Area & Atmospheric Pressure for half
So most of the sciency stuff to do with the Helios system I’ve got covered.
When it comes to more people oriented and culture stuff, the countries that exist there I’ve got pretty much nothing- so that’s what I mean by ‘everything to do with astrophysics.’