Reticulum
4 has a semi major axis of 1.12 AU putting it just outside the comfort zone
of 1.010 AUs. Its orbit takes it 432.5 days (1.12 Earth Years) around the parent
star. Despite Zeta (2)'s higher temperature and visual luminosity (1.020 x Sol),
Reticulum 4's moons remain partially shrouded on its darkside. Acheron, the
second moon (illustrated), suffers climatically from this.