Porios

Porios is a star in the Andromeda Galaxy with spectral class M2V. It is just over 2/3rds the mass of the Sun and is a member of a small open cluster of larger stars that were born around the same time. The system resides in the Andromeda Galaxy, embedded in the edge of a large HII nebula known to the Lithon as Flithalassos. The system is located in the S4 arm of Andromeda, approximately 33,000 light years from the galaxy center.

Planets
Porios has 4 orbiting planets. They are, in increasing order of distance from Porios: Theralmas, Ouros, Lithos, and Rutheras.

Theralme is a small rocky planet 0.15 AU from Porios. It is immensely hot with a thick atmosphere. Small Lithon colonies exist in its upper atmosphere, but a permanent colony on the surface has been thusfar infeasible.

Úros is a super-earth 0.29 AU from Porios. It is like Earth, with a moderate atmosphere, liquid water, and plentiful land. However, no life ever developed on Ouros. This, along with the fact that it gets as close as under a million kilometers to Lithos, has made it a perfect Lithon colony. It’s as if Venus passed less than 3 Lunar orbital radii away from Earth. A day on Úros is over 20 days long, an oddity in the system, and a year is 68 days.

Lithos is a super-earth 0.63 AU from Porios. It is very earth-like, with a moderate atmosphere, liquid water, and plentiful land. The Lithon species, who are native to the planet, are highly intelligent and operate an empire that spans multiple star systems. It has 2 major moons and 2 minor moons, as well as a ring system. A day on Lithos is 114 hours, and a year is 216 days.

Ruseros is a small gas giant 1.81 AU from Porios. It is smaller than Neptune but less dense than Saturn. It is dark red in color and has a small ring system. Ruseros has 2 major moons and 6 minor moons. Ruseros makes one orbit every 2.8 years.